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Upgrade planner and executor to allow multiple hash keys for a hash join,

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

2002年11月30日 00:08:22 +0000 (00:08 +0000)

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

2002年11月30日 00:08:22 +0000 (00:08 +0000)

commit ddb2d78de0172b1f3a00c8e3bf35345af9952f43

tree 75aaa2922e21b78514cd592241c1718a2e6a4ba8 tree

parent f68f11928d5c791873073c882775dae10283ff49 commit | diff

Upgrade planner and executor to allow multiple hash keys for a hash join,
instead of only one. This should speed up planning (only one hash path
to consider for a given pair of relations) as well as allow more effective
hashing, when there are multiple hashable joinclauses.

14 files changed:

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

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

src/backend/nodes/copyfuncs.c diff | blob | blame | history

src/backend/nodes/outfuncs.c diff | blob | blame | history

src/backend/optimizer/path/costsize.c diff | blob | blame | history

src/backend/optimizer/path/joinpath.c diff | blob | blame | history

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

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

src/backend/optimizer/util/pathnode.c diff | blob | blame | history

src/include/executor/hashjoin.h diff | blob | blame | history

src/include/executor/nodeHash.h diff | blob | blame | history

src/include/nodes/execnodes.h diff | blob | blame | history

src/include/nodes/plannodes.h diff | blob | blame | history

src/include/nodes/relation.h diff | blob | blame | history

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