Adjust join_search_one_level's handling of clauseless joins. For an initial relation that lacks any join clauses (that is, it has to be cartesian-product-joined to the rest of the query), we considered only cartesian joins with initial rels appearing later in the initial-relations list. This creates an undesirable dependency on FROM-list order. We would never fail to find a plan, but perhaps we might not find the best available plan. Noted while discussing the logic with Amit Kapila.
Improve the comments a bit in this area, too. Arguably this is a bug fix, but given the lack of complaints from the field I'll refrain from back-patching. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/1f0363001166ef6a43619846e44cfb9dbe7335ed Modified Files -------------- src/backend/optimizer/path/joinrels.c | 46 +++++++++++++++++++------------- 1 files changed, 27 insertions(+), 19 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
