61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*-------------------------------------------------------------------------
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*
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* dbcommands_xlog.h
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* Database resource manager XLOG definitions (create/drop database).
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*
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*
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* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/commands/dbcommands_xlog.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef DBCOMMANDS_XLOG_H
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#define DBCOMMANDS_XLOG_H
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#include "access/xlogreader.h"
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#include "lib/stringinfo.h"
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/* record types */
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#define XLOG_DBASE_CREATE_FILE_COPY 0x00
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#define XLOG_DBASE_CREATE_WAL_LOG 0x10
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#define XLOG_DBASE_DROP 0x20
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/*
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* Single WAL record for an entire CREATE DATABASE operation. This is used
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* by the FILE_COPY strategy.
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*/
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typedef struct xl_dbase_create_file_copy_rec
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{
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Oid db_id;
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Oid tablespace_id;
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Oid src_db_id;
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Oid src_tablespace_id;
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} xl_dbase_create_file_copy_rec;
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/*
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* WAL record for the beginning of a CREATE DATABASE operation, when the
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* WAL_LOG strategy is used. Each individual block will be logged separately
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* afterward.
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*/
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typedef struct xl_dbase_create_wal_log_rec
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{
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Oid db_id;
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Oid tablespace_id;
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} xl_dbase_create_wal_log_rec;
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typedef struct xl_dbase_drop_rec
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{
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Oid db_id;
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int ntablespaces; /* number of tablespace IDs */
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Oid tablespace_ids[FLEXIBLE_ARRAY_MEMBER];
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} xl_dbase_drop_rec;
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#define MinSizeOfDbaseDropRec offsetof(xl_dbase_drop_rec, tablespace_ids)
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extern void dbase_redo(XLogReaderState *rptr);
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extern void dbase_desc(StringInfo buf, XLogReaderState *rptr);
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extern const char *dbase_identify(uint8 info);
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#endif /* DBCOMMANDS_XLOG_H */
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