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Support for subselects.

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ExecReScan for nodeAgg, nodeHash, nodeHashjoin, nodeNestloop and nodeResult.
Fixed ExecReScan for nodeMaterial.
Get rid of #ifdef INDEXSCAN_PATCH.
Get rid of ExecMarkPos and ExecRestrPos in nodeNestloop.
This commit is contained in:
Vadim B. Mikheev
1998-02-13 03:26:53 +00:00
parent 13637df458
commit 1a105cefbd
15 changed files with 677 additions and 153 deletions
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22
src/backend/executor/nodeHash.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.18 1998/02/11 19:10:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeHash.c,v 1.19 1998/02/13 03:26:46 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@ -890,3 +890,23 @@ mk_hj_temp(char *tempname)
sprintf(tempname, "HJ%d.%d", (int) MyProcPid, hjtmpcnt);
hjtmpcnt = (hjtmpcnt + 1) % 1000;
}
void
ExecReScanHash(Hash *node, ExprContext *exprCtxt, Plan *parent)
{
HashState *hashstate = node->hashstate;
if (hashstate->hashBatches != NULL)
{
pfree(hashstate->hashBatches);
hashstate->hashBatches = NULL;
}
/*
* if chgParam of subnode is not null then plan
* will be re-scanned by first ExecProcNode.
*/
if (((Plan*) node)->lefttree->chgParam == NULL)
ExecReScan (((Plan*) node)->lefttree, exprCtxt, (Plan *) node);
}