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author	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 31 Jul 2007 19:53:50 +0000 (19:53 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Tue, 31 Jul 2007 19:53:50 +0000 (19:53 +0000)
commit	e403f0959e3549e05f78faa618ac196f6819b4c0
tree	8be0ee360ae2e6ca7f5cce61468556493fdcfd1e	tree
parent	dc89d74f31589a7b18eaa5dfb3954c49500927d1	commit \| diff

Fix a bug in the original implementation of redundant-join-clause removal:
clauses in which one side or the other references both sides of the join
cannot be removed as redundant, because that expression won't have been
constrained below the join. Per report from Sergey Burladyan.

Bernd Helmle's repository

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src/backend/optimizer/path/indxpath.c		diff \| blob \| blame \| history
src/backend/optimizer/plan/createplan.c		diff \| blob \| blame \| history
src/backend/optimizer/util/relnode.c		diff \| blob \| blame \| history
src/backend/optimizer/util/restrictinfo.c		diff \| blob \| blame \| history
src/include/optimizer/restrictinfo.h		diff \| blob \| blame \| history
src/test/regress/expected/join.out		diff \| blob \| blame \| history
src/test/regress/expected/join_1.out		diff \| blob \| blame \| history
src/test/regress/sql/join.sql		diff \| blob \| blame \| history