diff --git a/storage/rocksdb/rdb_converter.h b/storage/rocksdb/rdb_converter.h
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+++ b/storage/rocksdb/rdb_converter.h
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+/*
+   Copyright (c) 2018, Facebook, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#pragma once
+
+// C++ standard header files
+#include <string>
+#include <vector>
+
+// MySQL header files
+#include "src/interface/handler.h"  // handler
+#include "sql_string.h"
+
+// MyRocks header files
+#include "./ha_rocksdb.h"
+#include "./rdb_datadic.h"
+#include "ib_ut0counter.h"
+
+namespace myrocks {
+class Rdb_field_encoder;
+
+/**
+  Describes instructions on how to decode the field for value slice
+*/
+struct READ_FIELD {
+  // Points to Rdb_field_encoder describing the field
+  Rdb_field_encoder *m_field_enc;
+  // if true, decode the field, otherwise skip it
+  bool m_decode;
+  // Skip this many bytes before reading (or skipping) this field
+  int m_skip;
+};