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This is part #1 for of the DEFERRED CONSTRAINT TRIGGER support.

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Implements the CREATE CONSTRAINT TRIGGER and SET CONSTRAINTS commands.

TODO:
    Generic builtin trigger procedures
    Automatic execution of appropriate CREATE CONSTRAINT... at CREATE TABLE
    Support of new trigger type in pg_dump
    Swapping of huge # of events to disk

Jan
This commit is contained in:
Jan Wieck
1999-09-29 16:06:40 +00:00
parent d810338d29
commit 1547ee017c
20 changed files with 1473 additions and 245 deletions
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24
src/backend/access/transam/xact.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.54 1999/09/28 11:41:03 vadim Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/xact.c,v 1.55 1999/09/29 16:05:55 wieck Exp $
*
* NOTES
* Transaction aborts can now occur two ways:
@ -149,6 +149,7 @@
#include "commands/async.h"
#include "commands/sequence.h"
#include "commands/vacuum.h"
#include "commands/trigger.h"
#include "libpq/be-fsstubs.h"
#include "storage/proc.h"
#include "storage/sinval.h"
@ -865,6 +866,12 @@ StartTransaction()
*/
InitNoNameRelList();
/* ----------------
* Tell the trigger manager to we're starting a transaction
* ----------------
*/
DeferredTriggerBeginXact();
/* ----------------
* done with start processing, set current transaction
* state to "in progress"
@ -904,6 +911,14 @@ CommitTransaction()
if (s->state != TRANS_INPROGRESS)
elog(NOTICE, "CommitTransaction and not in in-progress state ");
/* ----------------
* Tell the trigger manager that this transaction is about to be
* committed. He'll invoke all trigger deferred until XACT before
* we really start on committing the transaction.
* ----------------
*/
DeferredTriggerEndXact();
/* ----------------
* set the current transaction state information
* appropriately during the abort processing
@ -992,6 +1007,13 @@ AbortTransaction()
if (s->state != TRANS_INPROGRESS)
elog(NOTICE, "AbortTransaction and not in in-progress state ");
/* ----------------
* Tell the trigger manager that this transaction is about to be
* aborted.
* ----------------
*/
DeferredTriggerAbortXact();
/* ----------------
* set the current transaction state information
* appropriately during the abort processing