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Revise executor APIs so that all per-query state structure is built in

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a per-query memory context created by CreateExecutorState --- and destroyed
by FreeExecutorState.  This provides a final solution to the longstanding
problem of memory leaked by various ExecEndNode calls.
This commit is contained in:
Tom Lane
2002-12-15 16:17:59 +00:00
parent 90b3a0b6fd
commit 5bab36e9f6
42 changed files with 806 additions and 547 deletions
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15
src/backend/executor/nodeSeqscan.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSeqscan.c,v 1.40 2002/12/13 19:45:55 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/nodeSeqscan.c,v 1.41 2002/12/15 16:17:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -264,22 +264,21 @@ ExecEndSeqScan(SeqScanState *node)
scanDesc = node->ss_currentScanDesc;
/*
* Free the projection info and the scan attribute info
* Free the exprcontext
*/
ExecFreeProjectionInfo(&node->ps);
ExecFreeExprContext(&node->ps);
/*
* close heap scan
*/
heap_endscan(scanDesc);
/*
* clean out the tuple table
*/
ExecClearTuple(node->ps.ps_ResultTupleSlot);
ExecClearTuple(node->ss_ScanTupleSlot);
/*
* close heap scan
*/
heap_endscan(scanDesc);
/*
* close the heap relation.
*