Tom Lane 4886dc92e0 Fix set_subquery_pathlist() to copy the RTE's subquery before it gets mangled ... by the planning process. This prevents the "failed to locate grouping columns" error recently reported by Dickson Guedes. That happens because planning replaces SubLinks by SubPlans in the subquery's targetlist, and exprTypmod() is smarter about the former than the latter, causing the apparent type of the subquery's output columns to change. This seems to be a deficiency we should fix in exprTypmod(), but that will be a much more invasive patch with possible side-effects elsewhere, so I'll do that only in HEAD. Back-patch to 8.3. Arguably the lack of a copying step is broken/dangerous all the way back, but in the absence of known problems I'll refrain from making the older branches pay the extra cost. (The reason this particular symptom didn't appear before is that exprTypmod() wasn't smart about SubLinks either, until 8.3.)		2009-03-10 20:58:26 +00:00
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allpaths.c	Fix set_subquery_pathlist() to copy the RTE's subquery before it gets mangled	2009-03-10 20:58:26 +00:00
clausesel.c	Fix cost_mergejoin's failure to adjust for rescanning of non-unique merge join	2009-02-06 23:43:24 +00:00
costsize.c	Fix cost_mergejoin's failure to adjust for rescanning of non-unique merge join	2009-02-06 23:43:24 +00:00
equivclass.c	Fix cost_mergejoin's failure to adjust for rescanning of non-unique merge join	2009-02-06 23:43:24 +00:00
indxpath.c	Teach the planner to support index access methods that only implement	2009-03-05 23:06:45 +00:00
joinpath.c	Fix an old corner-case error in match_unsorted_outer(): don't consider	2009-02-05 01:24:55 +00:00
joinrels.c	Tighten up join ordering rules to account for recent more-careful analysis	2009-02-27 22:41:38 +00:00
Makefile	Refactor backend makefiles to remove lots of duplicate code	2008-02-19 10:30:09 +00:00
orindxpath.c	Teach the planner to treat a partial unique index as proving a variable is	2009-02-15 20:16:21 +00:00
pathkeys.c	Shave a few cycles in compare_pathkeys() by checking for pointer-identical	2009-02-28 03:51:05 +00:00
tidpath.c	Update copyright for 2009.	2009-01-01 17:24:05 +00:00