git.postgresql.org Git - postgresql.git/commit

git projects / postgresql.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: e54ec92) | patch
Partially revert my patch of 2008年11月12日 that installed a limit on the number
2009年5月11日 17:56:08 +0000 (17:56 +0000)
2009年5月11日 17:56:08 +0000 (17:56 +0000)
commit 6480c143ee067544730993d03e0eb567f3acd71e
Partially revert my patch of 2008年11月12日 that installed a limit on the number
of AND/OR clause branches that predtest.c would attempt to deal with. As
noted in bug #4721, that change disabled proof attempts for sizes of problems
that people are actually expecting it to work for. The original complaint
it was trying to solve was O(N^2) behavior for long IN-lists, so let's try
applying the limit to just ScalarArrayOpExprs rather than everything.
Another case of "foolish consistency" I fear.

Back-patch to 8.2, same as the previous patch was.
src/backend/optimizer/util/predtest.c diff | blob | blame | history
This is the main PostgreSQL git repository.
RSS Atom

AltStyle によって変換されたページ (->オリジナル) /