From 6ebacf5bf53359642f26237ad18dbba4ef8e6657 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A6=99=E8=95=89=E5=82=A8=E8=93=84=E6=89=80?=
 <727854256@qq.com>
Date: Sat, 29 Mar 2025 17:03:24 +0800
Subject: [PATCH] =?UTF-8?q?[chg][normal]1.=E9=A1=B5=E5=8E=8B=E7=BC=A9?=
 =?UTF-8?q?=EF=BC=8C=E8=A1=A5=E5=85=A8zlib=E5=BC=80=E5=85=B3=E5=AE=8F?=
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---
 src/backend/storage/page/page_compression.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/backend/storage/page/page_compression.c b/src/backend/storage/page/page_compression.c
index 672706f..89c07a0 100644
--- a/src/backend/storage/page/page_compression.c
+++ b/src/backend/storage/page/page_compression.c
@@ -6,7 +6,11 @@
 #include "utils/rel.h"
 #include "utils/wait_event.h"
 #include "common/pg_lzcompress.h"
+
+#ifdef HAVE_LIBZ
 #include <zlib.h>
+#endif
+
 #ifdef USE_ZSTD
 #include <zstd.h>
 #endif
@@ -80,7 +84,11 @@ int CompressPageBufferBound(const char* page, uint8 algorithm)
         case COMPRESS_ALGORITHM_PGZSTD:
             return BLCKSZ + 4;
         case COMPRESS_ALGORITHM_ZLIB:
+#ifdef HAVE_LIBZ
             return compressBound(BLCKSZ - CompressReservedLen(page));
+#else
+            return -1;
+#endif
         default:
             return -1;
     }
@@ -260,6 +268,7 @@ int KPHCCompressPage(const char* src, char* dst, int dst_size, const KPHCRelFile
 #endif
         }
         case COMPRESS_ALGORITHM_ZLIB: {
+#ifdef HAVE_LIBZ
             int level = option.compressLevel;
             if (level == 0 || level < MIN_ZLIB_COMPRESSION_LEVEL || level > MAX_ZLIB_COMPRESSION_LEVEL) {
                 level = DEFAULT_ZLIB_COMPRESSION_LEVEL;
@@ -271,6 +280,9 @@ int KPHCCompressPage(const char* src, char* dst, int dst_size, const KPHCRelFile
             }
             compressed_size = dst_size;
             break;
+#else
+                 return -1;
+#endif
         }
         default:
             return KPHC_COMPRESS_UNSUPPORTED_ERROR;
@@ -363,6 +375,7 @@ int KPHCDecompressPage(const char* src, char* dst)
 #endif
             break;
         case KPHC_COMPRESS_ALGORITHM_ZLIB:
+#ifdef HAVE_LIBZ
             desLength = BLCKSZ - headerSize;
             ret = uncompress((Bytef *)(dst + headerSize), (uLongf *)&desLength, data, ((KPHCPageCompressData*)src)->size);
             if (ret != Z_OK) {
@@ -370,6 +383,9 @@ int KPHCDecompressPage(const char* src, char* dst)
             }
             decompressed_size = desLength;
             break;
+#else
+            return -1;
+#endif
         default:
             return KPHC_COMPRESS_UNSUPPORTED_ERROR;
             break;
-- 
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