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Rework join-removal logic as per recent discussion. In particular this

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

2010年3月28日 22:59:34 +0000 (22:59 +0000)

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

2010年3月28日 22:59:34 +0000 (22:59 +0000)

commit b78f6264eba33e2966447572b8261e353df01e59

tree 1b5cfa84c32c6683851d335cfa9cd7dab54ecee5 tree

parent a760893dbda9934e287789d54bbd3c4ca3914ce0 commit | diff

Rework join-removal logic as per recent discussion. In particular this
fixes things so that it works for cases where nested removals are possible.
The overhead of the optimization should be significantly less, as well.

17 files changed:

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

src/backend/optimizer/README diff | blob | blame | history

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

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

src/backend/optimizer/plan/Makefile diff | blob | blame | history

src/backend/optimizer/plan/analyzejoins.c [new file with mode: 0644] blob

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

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

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

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

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

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

src/include/optimizer/pathnode.h diff | blob | blame | history

src/include/optimizer/placeholder.h diff | blob | blame | history

src/include/optimizer/planmain.h diff | blob | blame | history

src/test/regress/expected/join.out diff | blob | blame | history

src/test/regress/sql/join.sql diff | blob | blame | history

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