Fix planning of star-schema-style queries. Part of the intent of the parameterized-path mechanism was to handle star-schema queries efficiently, but some overly-restrictive search limiting logic added in commit e2fa76d80ba571d4de8992de6386536867250474 prevented such cases from working as desired. Fix that and add a regression test about it. Per gripe from Marc Cousin.
This is arguably a bug rather than a new feature, so back-patch to 9.2 where parameterized paths were introduced. Branch ------ REL9_3_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/1b558782b7156bac9b4012ccee5338f1ccd236d9 Modified Files -------------- src/backend/optimizer/README | 34 +++++++++++++++++++++------ src/backend/optimizer/path/joinpath.c | 41 +++++++++++++++++++++++++-------- src/test/regress/expected/join.out | 19 +++++++++++++++ src/test/regress/sql/join.sql | 9 ++++++++ 4 files changed, 86 insertions(+), 17 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
