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Use Snapshot in heap access methods.

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This commit is contained in:
Vadim B. Mikheev
1998-07-27 19:38:40 +00:00
parent f7f989c990
commit be8300b18f
54 changed files with 352 additions and 339 deletions
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24
src/backend/executor/nodeTee.c
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@ -15,7 +15,7 @@
* ExecEndTee
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/Attic/nodeTee.c,v 1.18 1998/06/15 19:28:23 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/Attic/nodeTee.c,v 1.19 1998/07/27 19:37:57 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -226,10 +226,11 @@ ExecCountSlotsTee(Tee *node)
static void
initTeeScanDescs(Tee *node)
{
TeeState *teeState;
Relation bufferRel;
ScanDirection dir;
MemoryContext orig;
TeeState *teeState;
Relation bufferRel;
ScanDirection dir;
Snapshot snapshot;
MemoryContext orig;
teeState = node->teestate;
if (teeState->tee_leftScanDesc && teeState->tee_rightScanDesc)
@ -241,23 +242,24 @@ initTeeScanDescs(Tee *node)
bufferRel = teeState->tee_bufferRel;
dir = ((Plan *) node)->state->es_direction; /* backwards not handled
* yet XXX */
snapshot = ((Plan *) node)->state->es_snapshot;
if (teeState->tee_leftScanDesc == NULL)
{
teeState->tee_leftScanDesc = heap_beginscan(bufferRel,
ScanDirectionIsBackward(dir),
false, /* seeself */
0, /* num scan keys */
NULL /* scan keys */
snapshot,
0, /* num scan keys */
NULL /* scan keys */
);
}
if (teeState->tee_rightScanDesc == NULL)
{
teeState->tee_rightScanDesc = heap_beginscan(bufferRel,
ScanDirectionIsBackward(dir),
false, /* seeself */
0, /* num scan keys */
NULL /* scan keys */
snapshot,
0, /* num scan keys */
NULL /* scan keys */
);
}