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Do execGrouping.c via expression eval machinery.

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This has a performance benefit on own, although not hugely so. The
primary benefit is that it will allow for to JIT tuple deforming and
comparator invocations.

Author: Andres Freund
Discussion: https://postgr.es/m/20171129080934.amqqkke2zjtekd4t@alap3.anarazel.de
This commit is contained in:
Andres Freund
2018-02-15 21:55:31 -08:00
parent 51db0d18fb
commit 773aec7aa9
15 changed files with 498 additions and 366 deletions
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28
src/include/executor/executor.h
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@ -113,25 +113,18 @@ extern bool execCurrentOf(CurrentOfExpr *cexpr,
/*
* prototypes from functions in execGrouping.c
*/
extern bool execTuplesMatch(TupleTableSlot *slot1,
TupleTableSlot *slot2,
int numCols,
AttrNumber *matchColIdx,
FmgrInfo *eqfunctions,
MemoryContext evalContext);
extern bool execTuplesUnequal(TupleTableSlot *slot1,
TupleTableSlot *slot2,
int numCols,
AttrNumber *matchColIdx,
FmgrInfo *eqfunctions,
MemoryContext evalContext);
extern FmgrInfo *execTuplesMatchPrepare(int numCols,
Oid *eqOperators);
extern ExprState *execTuplesMatchPrepare(TupleDesc desc,
int numCols,
AttrNumber *keyColIdx,
Oid *eqOperators,
PlanState *parent);
extern void execTuplesHashPrepare(int numCols,
Oid *eqOperators,
FmgrInfo **eqFunctions,
FmgrInfo **hashFunctions);
extern TupleHashTable BuildTupleHashTable(int numCols, AttrNumber *keyColIdx,
extern TupleHashTable BuildTupleHashTable(PlanState *parent,
TupleDesc inputDesc,
int numCols, AttrNumber *keyColIdx,
FmgrInfo *eqfunctions,
FmgrInfo *hashfunctions,
long nbuckets, Size additionalsize,
@ -257,6 +250,11 @@ extern ExprState *ExecInitCheck(List *qual, PlanState *parent);
extern List *ExecInitExprList(List *nodes, PlanState *parent);
extern ExprState *ExecBuildAggTrans(AggState *aggstate, struct AggStatePerPhaseData *phase,
bool doSort, bool doHash);
extern ExprState *ExecBuildGroupingEqual(TupleDesc desc,
int numCols,
AttrNumber *keyColIdx,
Oid *eqfunctions,
PlanState *parent);
extern ProjectionInfo *ExecBuildProjectionInfo(List *targetList,
ExprContext *econtext,
TupleTableSlot *slot,