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f1fd515b39
This makes it easier to write frontend programs that needs to understand the WAL record format of CREATE/DROP DATABASE. dbcommands.h cannot easily be #included in a frontend program, because it pulls in other header files that need backend stuff, but the new dbcommands_xlog.h header file has fewer dependencies.
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*-------------------------------------------------------------------------
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*
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* dbasedesc.c
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* rmgr descriptor routines for commands/dbcommands.c
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*
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* Portions Copyright (c) 1996-2015, 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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*
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* IDENTIFICATION
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* src/backend/access/rmgrdesc/dbasedesc.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "commands/dbcommands_xlog.h"
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#include "lib/stringinfo.h"
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void
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dbase_desc(StringInfo buf, XLogReaderState *record)
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{
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char *rec = XLogRecGetData(record);
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uint8 info = XLogRecGetInfo(record) & ~XLR_INFO_MASK;
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if (info == XLOG_DBASE_CREATE)
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{
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xl_dbase_create_rec *xlrec = (xl_dbase_create_rec *) rec;
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appendStringInfo(buf, "copy dir %u/%u to %u/%u",
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xlrec->src_db_id, xlrec->src_tablespace_id,
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xlrec->db_id, xlrec->tablespace_id);
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}
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else if (info == XLOG_DBASE_DROP)
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{
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xl_dbase_drop_rec *xlrec = (xl_dbase_drop_rec *) rec;
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appendStringInfo(buf, "dir %u/%u",
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xlrec->db_id, xlrec->tablespace_id);
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}
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}
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const char *
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dbase_identify(uint8 info)
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{
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const char *id = NULL;
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switch (info & ~XLR_INFO_MASK)
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{
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case XLOG_DBASE_CREATE:
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id = "CREATE";
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break;
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case XLOG_DBASE_DROP:
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id = "DROP";
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break;
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}
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return id;
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}
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