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Add code to handle [ON COMMIT { PRESERVE ROWS | DELETE ROWS | DROP }]

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for temp tables.

Gavin Sherry
This commit is contained in:
Bruce Momjian
2002-11-09 23:56:39 +00:00
parent f2ef470196
commit ebb531836a
13 changed files with 371 additions and 25 deletions
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28
src/include/commands/tablecmds.h
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@@ -7,13 +7,14 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: tablecmds.h,v 1.8 2002/10/21 20:31:52 momjian Exp $
* $Id: tablecmds.h,v 1.9 2002/11/09 23:56:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef TABLECMDS_H
#define TABLECMDS_H
#include "access/htup.h"
#include "nodes/parsenodes.h"
extern void AlterTableAddColumn(Oid myrelid, bool recurse, ColumnDef *colDef);
@@ -62,4 +63,29 @@ extern void renameatt(Oid myrelid,
extern void renamerel(Oid myrelid,
const char *newrelname);
/*
* Temp rel stuff
*/
typedef struct TempTable
{
Oid relid; /* relid of temp relation */
char ateoxact; /* what to do at end of xact */
TransactionId tid; /* trans id where in rel was created */
bool dead; /* table was dropped in the current xact */
} TempTable;
extern void AtEOXact_temp_relations(bool iscommit, int bstate);
extern void reg_temp_rel(TempTable *t);
extern void free_temp_rels(void);
extern void rm_temp_rel(Oid relid);
/*
* What to do at commit time for temporary relations
*/
#define ATEOXACTNOOP 0 /* no operation at commit */
#define ATEOXACTPRESERVE 1 /* preserve rows */
#define ATEOXACTDELETE 2 /* delete rows */
#define ATEOXACTDROP 3 /* drop temp table */
#endif /* TABLECMDS_H */