David Rowley 3e9abd2eb1 Teach remove_unused_subquery_outputs about window run conditions ... 9d9c02ccd added code to allow the executor to take shortcuts when quals on monotonic window functions guaranteed that once the qual became false it could never become true again. When possible, baserestrictinfo quals are converted to become these quals, which we call run conditions. Unfortunately, in 9d9c02ccd, I forgot to update remove_unused_subquery_outputs to teach it about these run conditions. This could cause a WindowFunc column which was unused in the target list but referenced by an upper-level WHERE clause to be removed from the subquery when the qual in the WHERE clause was converted into a window run condition. Because of this, the entire WindowClause would be removed from the query resulting in additional rows making it into the resultset when they should have been filtered out by the WHERE clause. Here we fix this by recording which target list items in the subquery have run conditions. That gets passed along to remove_unused_subquery_outputs to tell it not to remove these items from the target list. Bug: #17495 Reported-by: Jeremy Evans Reviewed-by: Richard Guo Discussion: https://postgr.es/m/17495-7ffe2fa0b261b9fa@postgresql.org		2022-05-27 10:37:58 +12:00
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allpaths.c	Teach remove_unused_subquery_outputs about window run conditions	2022-05-27 10:37:58 +12:00
clausesel.c	Update copyright for 2022	2022-01-07 19:04:57 -05:00
costsize.c	Avoid overflow hazard when clamping group counts to "long int".	2022-05-21 13:13:44 -04:00
equivclass.c	Pre-beta mechanical code beautification.	2022-05-12 15:17:30 -04:00
indxpath.c	Update copyright for 2022	2022-01-07 19:04:57 -05:00
joinpath.c	Fix incorrect row estimates used for Memoize costing	2022-05-16 16:07:56 +12:00
joinrels.c	Update copyright for 2022	2022-01-07 19:04:57 -05:00
Makefile	Split all OBJS style lines in makefiles into one-line-per-entry style.	2019-11-05 14:41:07 -08:00
pathkeys.c	Pre-beta mechanical code beautification.	2022-05-12 15:17:30 -04:00
tidpath.c	Update copyright for 2022	2022-01-07 19:04:57 -05:00