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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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src/include/executor/execExpr.h
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@ -148,6 +148,7 @@ typedef enum ExprEvalOp
/* evaluate assorted special-purpose expression types */
EEOP_IOCOERCE,
EEOP_DISTINCT,
EEOP_NOT_DISTINCT,
EEOP_NULLIF,
EEOP_SQLVALUEFUNCTION,
EEOP_CURRENTOFEXPR,