greenplumn dbcommands_xlog 源码
greenplumn dbcommands_xlog 代码
文件路径：/src/include/commands/dbcommands_xlog.h
/*-------------------------------------------------------------------------
*
* dbcommands_xlog.h
* Database resource manager XLOG definitions (create/drop database).
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/commands/dbcommands_xlog.h
*
*-------------------------------------------------------------------------
*/
#ifndef DBCOMMANDS_XLOG_H
#define DBCOMMANDS_XLOG_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
/* record types */
#define XLOG_DBASE_CREATE 0x00
#define XLOG_DBASE_DROP 0x10
typedef struct xl_dbase_create_rec
{
/* Records copying of a single subdirectory incl. contents */
Oid db_id;
Oid tablespace_id;
Oid src_db_id;
Oid src_tablespace_id;
} xl_dbase_create_rec;
typedef struct xl_dbase_drop_rec
{
/* Records dropping of a single subdirectory incl. contents */
Oid db_id;
Oid tablespace_id;
} xl_dbase_drop_rec;
extern void dbase_redo(XLogReaderState *rptr);
extern void dbase_desc(StringInfo buf, XLogReaderState *rptr);
extern const char *dbase_identify(uint8 info);
#endif /* DBCOMMANDS_XLOG_H */
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