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/*-------------------------------------------------------------------------
*
* dbcommands_xlog.h
* Database resource manager XLOG definitions (create/drop database).
*
*
* Portions Copyright (c) 1996-2022, 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_FILE_COPY 0x00
#define XLOG_DBASE_CREATE_WAL_LOG 0x10
#define XLOG_DBASE_DROP 0x20
/*
* Single WAL record for an entire CREATE DATABASE operation. This is used
* by the FILE_COPY strategy.
*/
typedef struct xl_dbase_create_file_copy_rec
{
Oid db_id;
Oid tablespace_id;
Oid src_db_id;
Oid src_tablespace_id;
} xl_dbase_create_file_copy_rec;
/*
* WAL record for the beginning of a CREATE DATABASE operation, when the
* WAL_LOG strategy is used. Each individual block will be logged separately
* afterward.
*/
typedef struct xl_dbase_create_wal_log_rec
{
Oid db_id;
Oid tablespace_id;
} xl_dbase_create_wal_log_rec;
typedef struct xl_dbase_drop_rec
{
Oid db_id;
int ntablespaces; /* number of tablespace IDs */
Oid tablespace_ids[FLEXIBLE_ARRAY_MEMBER];
} xl_dbase_drop_rec;
#define MinSizeOfDbaseDropRec offsetof(xl_dbase_drop_rec, tablespace_ids)
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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