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Do execGrouping.c via expression eval machinery, take two.

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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.

Large parts of this were previously committed (773aec7aa), but the
commit contained an omission around cross-type comparisons and was
thus reverted.

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 ad9a274778
commit bf6c614a2f
15 changed files with 566 additions and 400 deletions
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34
src/include/executor/executor.h
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@ -113,26 +113,19 @@ 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,
Oid **eqFuncOids,
FmgrInfo **hashFunctions);
extern TupleHashTable BuildTupleHashTable(int numCols, AttrNumber *keyColIdx,
FmgrInfo *eqfunctions,
extern TupleHashTable BuildTupleHashTable(PlanState *parent,
TupleDesc inputDesc,
int numCols, AttrNumber *keyColIdx,
Oid *eqfuncoids,
FmgrInfo *hashfunctions,
long nbuckets, Size additionalsize,
MemoryContext tablecxt,
@ -142,7 +135,7 @@ extern TupleHashEntry LookupTupleHashEntry(TupleHashTable hashtable,
bool *isnew);
extern TupleHashEntry FindTupleHashEntry(TupleHashTable hashtable,
TupleTableSlot *slot,
FmgrInfo *eqfunctions,
ExprState *eqcomp,
FmgrInfo *hashfunctions);
/*
@ -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 ldesc, TupleDesc rdesc,
int numCols,
AttrNumber *keyColIdx,
Oid *eqfunctions,
PlanState *parent);
extern ProjectionInfo *ExecBuildProjectionInfo(List *targetList,
ExprContext *econtext,
TupleTableSlot *slot,