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Fix an oversight in join-removal optimization: we have to check not only for

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

2010年3月22日 13:57:16 +0000 (13:57 +0000)

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

2010年3月22日 13:57:16 +0000 (13:57 +0000)

commit 8d3c4aa614e20375daeff0bb1b9f640b115f363e

tree b455eb7bb9acd7510dfb51a6931de638596d0111 tree

parent ecac5e6bfc3b236b41ea282f5625203d5ee90b55 commit | diff

Fix an oversight in join-removal optimization: we have to check not only for
plain Vars that are generated in the inner rel and used above the join, but
also for PlaceHolderVars. Per report from Oleg K.

src/backend/optimizer/path/joinpath.c 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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