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GetTupleForTrigger must use outer transaction's command counter for time

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qual checking, not GetCurrentCommandId.  Per test case from Steve Wolfe.
This commit is contained in:
Tom Lane
2003-03-27 14:33:21 +00:00
parent a6f056987e
commit 9ae5b8cb92
3 changed files with 33 additions and 22 deletions
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27
src/backend/commands/trigger.c
View File

@@ -7,7 +7,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.136 2002/10/21 19:55:49 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/trigger.c,v 1.136.2.1 2003/03/27 14:33:20 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -42,6 +42,7 @@ static void InsertTrigger(TriggerDesc *trigdesc, Trigger *trigger, int indx);
static HeapTuple GetTupleForTrigger(EState *estate,
ResultRelInfo *relinfo,
ItemPointer tid,
CommandId cid,
TupleTableSlot **newSlot);
static HeapTuple ExecCallTriggerFunc(TriggerData *trigdata,
FmgrInfo *finfo,
@@ -1189,7 +1190,8 @@ ExecARInsertTriggers(EState *estate, ResultRelInfo *relinfo,
bool
ExecBRDeleteTriggers(EState *estate, ResultRelInfo *relinfo,
ItemPointer tupleid)
ItemPointer tupleid,
CommandId cid)
{
TriggerDesc *trigdesc = relinfo->ri_TrigDesc;
int ntrigs = trigdesc->n_before_row[TRIGGER_EVENT_DELETE];
@@ -1200,7 +1202,7 @@ ExecBRDeleteTriggers(EState *estate, ResultRelInfo *relinfo,
TupleTableSlot *newSlot;
int i;
trigtuple = GetTupleForTrigger(estate, relinfo, tupleid, &newSlot);
trigtuple = GetTupleForTrigger(estate, relinfo, tupleid, cid, &newSlot);
if (trigtuple == NULL)
return false;
@@ -1247,7 +1249,9 @@ ExecARDeleteTriggers(EState *estate, ResultRelInfo *relinfo,
if (trigdesc->n_after_row[TRIGGER_EVENT_DELETE] > 0)
{
HeapTuple trigtuple = GetTupleForTrigger(estate, relinfo,
tupleid, NULL);
tupleid,
(CommandId) 0,
NULL);
DeferredTriggerSaveEvent(relinfo, TRIGGER_EVENT_DELETE,
trigtuple, NULL);
@@ -1257,7 +1261,8 @@ ExecARDeleteTriggers(EState *estate, ResultRelInfo *relinfo,
HeapTuple
ExecBRUpdateTriggers(EState *estate, ResultRelInfo *relinfo,
ItemPointer tupleid, HeapTuple newtuple)
ItemPointer tupleid, HeapTuple newtuple,
CommandId cid)
{
TriggerDesc *trigdesc = relinfo->ri_TrigDesc;
int ntrigs = trigdesc->n_before_row[TRIGGER_EVENT_UPDATE];
@@ -1269,7 +1274,7 @@ ExecBRUpdateTriggers(EState *estate, ResultRelInfo *relinfo,
TupleTableSlot *newSlot;
int i;
trigtuple = GetTupleForTrigger(estate, relinfo, tupleid, &newSlot);
trigtuple = GetTupleForTrigger(estate, relinfo, tupleid, cid, &newSlot);
if (trigtuple == NULL)
return NULL;
@@ -1322,7 +1327,9 @@ ExecARUpdateTriggers(EState *estate, ResultRelInfo *relinfo,
if (trigdesc->n_after_row[TRIGGER_EVENT_UPDATE] > 0)
{
HeapTuple trigtuple = GetTupleForTrigger(estate, relinfo,
tupleid, NULL);
tupleid,
(CommandId) 0,
NULL);
DeferredTriggerSaveEvent(relinfo, TRIGGER_EVENT_UPDATE,
trigtuple, newtuple);
@@ -1333,7 +1340,8 @@ ExecARUpdateTriggers(EState *estate, ResultRelInfo *relinfo,
static HeapTuple
GetTupleForTrigger(EState *estate, ResultRelInfo *relinfo,
ItemPointer tid, TupleTableSlot **newSlot)
ItemPointer tid, CommandId cid,
TupleTableSlot **newSlot)
{
Relation relation = relinfo->ri_RelationDesc;
HeapTupleData tuple;
@@ -1350,8 +1358,7 @@ GetTupleForTrigger(EState *estate, ResultRelInfo *relinfo,
*newSlot = NULL;
tuple.t_self = *tid;
ltrmark:;
test = heap_mark4update(relation, &tuple, &buffer,
GetCurrentCommandId());
test = heap_mark4update(relation, &tuple, &buffer, cid);
switch (test)
{
case HeapTupleSelfUpdated:

8
src/backend/executor/execMain.c
View File

@@ -27,7 +27,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.180.2.1 2003/01/23 05:10:56 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/execMain.c,v 1.180.2.2 2003/03/27 14:33:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1295,7 +1295,8 @@ ExecDelete(TupleTableSlot *slot,
{
bool dodelete;
dodelete = ExecBRDeleteTriggers(estate, resultRelInfo, tupleid);
dodelete = ExecBRDeleteTriggers(estate, resultRelInfo, tupleid,
estate->es_snapshot->curcid);
if (!dodelete) /* "do nothing" */
return;
@@ -1406,7 +1407,8 @@ ExecUpdate(TupleTableSlot *slot,
HeapTuple newtuple;
newtuple = ExecBRUpdateTriggers(estate, resultRelInfo,
tupleid, tuple);
tupleid, tuple,
estate->es_snapshot->curcid);
if (newtuple == NULL) /* "do nothing" */
return;

8
src/include/commands/trigger.h
View File

@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: trigger.h,v 1.39 2002/10/14 16:51:30 tgl Exp $
* $Id: trigger.h,v 1.39.2.1 2003/03/27 14:33:21 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -124,14 +124,16 @@ extern void ExecARInsertTriggers(EState *estate,
HeapTuple trigtuple);
extern bool ExecBRDeleteTriggers(EState *estate,
ResultRelInfo *relinfo,
ItemPointer tupleid);
ItemPointer tupleid,
CommandId cid);
extern void ExecARDeleteTriggers(EState *estate,
ResultRelInfo *relinfo,
ItemPointer tupleid);
extern HeapTuple ExecBRUpdateTriggers(EState *estate,
ResultRelInfo *relinfo,
ItemPointer tupleid,
HeapTuple newtuple);
HeapTuple newtuple,
CommandId cid);
extern void ExecARUpdateTriggers(EState *estate,
ResultRelInfo *relinfo,
ItemPointer tupleid,