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First stage of reclaiming memory in executor by resetting short-term

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memory contexts.  Currently, only leaks in expressions executed as
quals or projections are handled.  Clean up some old dead cruft in
executor while at it --- unused fields in state nodes, that sort of thing.
This commit is contained in:
Tom Lane
2000-07-12 02:37:39 +00:00
parent 46fb9c29e2
commit badce86a2c
53 changed files with 1536 additions and 1584 deletions
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40
src/backend/catalog/index.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.124 2000/07/05 23:11:06 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/catalog/index.c,v 1.125 2000/07/12 02:36:55 tgl Exp $
*
*
* INTERFACE ROUTINES
@@ -1670,34 +1670,6 @@ UpdateStats(Oid relid, long reltuples, bool inplace)
}
/* -------------------------
* FillDummyExprContext
* Sets up dummy ExprContext and TupleTableSlot objects for use
* with ExecQual.
*
* NOTE: buffer is passed for historical reasons; it should
* almost certainly always be InvalidBuffer.
* -------------------------
*/
void
FillDummyExprContext(ExprContext *econtext,
TupleTableSlot *slot,
TupleDesc tupdesc,
Buffer buffer)
{
econtext->ecxt_scantuple = slot;
econtext->ecxt_innertuple = NULL;
econtext->ecxt_outertuple = NULL;
econtext->ecxt_param_list_info = NULL;
econtext->ecxt_range_table = NULL;
slot->ttc_tupleDescriptor = tupdesc;
slot->ttc_buffer = buffer;
slot->ttc_shouldFree = false;
}
/* ----------------
* DefaultBuild
*
@@ -1777,14 +1749,14 @@ DefaultBuild(Relation heapRelation,
{
tupleTable = ExecCreateTupleTable(1);
slot = ExecAllocTableSlot(tupleTable);
econtext = makeNode(ExprContext);
FillDummyExprContext(econtext, slot, heapDescriptor, InvalidBuffer);
ExecSetSlotDescriptor(slot, heapDescriptor);
econtext = MakeExprContext(slot, TransactionCommandContext);
}
else
{
econtext = NULL;
tupleTable = 0;
tupleTable = NULL;
slot = NULL;
econtext = NULL;
}
#endif /* OMIT_PARTIAL_INDEX */
@@ -1812,7 +1784,6 @@ DefaultBuild(Relation heapRelation,
reltuples++;
#ifndef OMIT_PARTIAL_INDEX
/*
* If oldPred != NULL, this is an EXTEND INDEX command, so skip
* this tuple if it was already in the existing partial index
@@ -1877,6 +1848,7 @@ DefaultBuild(Relation heapRelation,
{
/* parameter was 'false', almost certainly wrong --- tgl 9/21/99 */
ExecDropTupleTable(tupleTable, true);
FreeExprContext(econtext);
}
#endif /* OMIT_PARTIAL_INDEX */