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Add NOWAIT option to SELECT FOR UPDATE/SHARE.

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Original patch by Hans-Juergen Schoenig, revisions by Karel Zak
and Tom Lane.
This commit is contained in:
Tom Lane
2005-08-01 20:31:16 +00:00
parent ca7abcd89d
commit 2a4fad1a0e
28 changed files with 387 additions and 157 deletions
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5
src/backend/commands/trigger.c
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/trigger.c,v 1.189 2005/05/30 07:20:58 neilc Exp $
* $PostgreSQL: pgsql/src/backend/commands/trigger.c,v 1.190 2005/08/01 20:31:07 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1598,7 +1598,8 @@ GetTupleForTrigger(EState *estate, ResultRelInfo *relinfo,
*newSlot = NULL;
tuple.t_self = *tid;
ltrmark:;
test = heap_lock_tuple(relation, &tuple, &buffer, cid, LockTupleExclusive);
test = heap_lock_tuple(relation, &tuple, &buffer, cid,
LockTupleExclusive, false);
switch (test)
{
case HeapTupleSelfUpdated: