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First phase of memory management rewrite (see backend/utils/mmgr/README
for details). It doesn't really do that much yet, since there are no short-term memory contexts in the executor, but the infrastructure is in place and long-term contexts are handled reasonably. A few long- standing bugs have been fixed, such as 'VACUUM; anything' in a single query string crashing. Also, out-of-memory is now considered a recoverable ERROR, not FATAL. Eliminate a large amount of crufty, now-dead code in and around memory management. Fix problem with holding off SIGTRAP, SIGSEGV, etc in postmaster and backend startup.
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@ -32,7 +32,7 @@
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.67 2000/06/15 03:32:09 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/executor/nodeAgg.c,v 1.68 2000/06/28 03:31:33 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -265,7 +265,7 @@ advance_transition_functions(AggStatePerAgg peraggstate,
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else
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newVal = FunctionCallInvoke(&fcinfo);
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if (!peraggstate->transtype1ByVal && !peraggstate->value1IsNull)
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pfree(peraggstate->value1);
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pfree(DatumGetPointer(peraggstate->value1));
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peraggstate->value1 = newVal;
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peraggstate->value1IsNull = fcinfo.isnull;
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}
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@ -288,7 +288,7 @@ advance_transition_functions(AggStatePerAgg peraggstate,
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else
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newVal = FunctionCallInvoke(&fcinfo);
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if (!peraggstate->transtype2ByVal && !peraggstate->value2IsNull)
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pfree(peraggstate->value2);
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pfree(DatumGetPointer(peraggstate->value2));
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peraggstate->value2 = newVal;
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peraggstate->value2IsNull = fcinfo.isnull;
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}
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@ -424,12 +424,12 @@ finalize_aggregate(AggStatePerAgg peraggstate,
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if (OidIsValid(peraggstate->xfn1_oid) &&
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!peraggstate->value1IsNull &&
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!peraggstate->transtype1ByVal)
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pfree(peraggstate->value1);
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pfree(DatumGetPointer(peraggstate->value1));
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if (OidIsValid(peraggstate->xfn2_oid) &&
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!peraggstate->value2IsNull &&
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!peraggstate->transtype2ByVal)
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pfree(peraggstate->value2);
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pfree(DatumGetPointer(peraggstate->value2));
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}
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/* ---------------------------------------
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