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Tighten selection of equality and ordering operators for grouping

author Tom Lane <tgl@sss.pgh.pa.us>

2002年11月29日 21:39:12 +0000 (21:39 +0000)

committer Tom Lane <tgl@sss.pgh.pa.us>

2002年11月29日 21:39:12 +0000 (21:39 +0000)

commit f68f11928d5c791873073c882775dae10283ff49

tree 628e4491fe33cdafb0e205d73e29b154ef68f94b tree

parent 851a4c48fd468b15ef988d5d2c79a44246dd478d commit | diff

Tighten selection of equality and ordering operators for grouping
operations: make sure we use operators that are compatible, as determined
by a mergejoin link in pg_operator. Also, add code to planner to ensure
we don't try to use hashed grouping when the grouping operators aren't
marked hashable.

src/backend/commands/analyze.c diff | blob | blame | history

src/backend/executor/nodeAgg.c diff | blob | blame | history

src/backend/executor/nodeGroup.c diff | blob | blame | history

src/backend/optimizer/plan/planner.c diff | blob | blame | history

src/backend/parser/parse_clause.c diff | blob | blame | history

src/backend/parser/parse_oper.c diff | blob | blame | history

src/backend/utils/adt/ri_triggers.c diff | blob | blame | history

src/include/parser/parse_oper.h diff | blob | blame | history

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