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Peter Eisentraut a3d2b1bbe9 Disable anonymous record hash support except in special cases ... Commit 01e658fa74 added hash support for row types. This also added support for hashing anonymous record types, using the same approach that the type cache uses for comparison support for record types: It just reports that it works, but it might fail at run time if a component type doesn't actually support the operation. We get away with that for comparison because most types support that. But some types don't support hashing, so the current state can result in failures at run time where the planner chooses hashing over sorting, whereas that previously worked if only sorting was an option. We do, however, want the record hashing support for path tracking in recursive unions, and the SEARCH and CYCLE clauses built on that. In that case, hashing is the only plan option. So enable that, this commit implements the following approach: The type cache does not report that hashing is available for the record type. This undoes that part of 01e658fa74. Instead, callers that require hashing no matter what can override that result themselves. This patch only touches the callers to make the aforementioned recursive query cases work, namely the parse analysis of unions, as well as the hash_array() function. Reported-by: Sait Talha Nisanci <sait.nisanci@microsoft.com> Bug: #17158 Discussion: https://www.postgresql.org/message-id/flat/17158-8a2ba823982537a4%40postgresql.org		4 years ago
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Makefile	Split all OBJS style lines in makefiles into one-line-per-entry style.	6 years ago
attoptcache.c	Update copyright for 2021	5 years ago
catcache.c	Add "pg_database_owner" default role.	5 years ago
evtcache.c	Update copyright for 2021	5 years ago
inval.c	Reduce memory consumption for pending invalidation messages.	4 years ago
lsyscache.c	Use the "pg_temp" schema alias in EXPLAIN and related output.	4 years ago
partcache.c	Remove unused function parameter in get_qual_from_partbound	4 years ago
plancache.c	Rename debug_invalidate_system_caches_always to debug_discard_caches.	4 years ago
relcache.c	Rename debug_invalidate_system_caches_always to debug_discard_caches.	4 years ago
relfilenodemap.c	Update copyright for 2021	5 years ago
relmapper.c	Another fix to relmapper race condition.	4 years ago
spccache.c	Update copyright for 2021	5 years ago
syscache.c	Add index OID macro argument to DECLARE_INDEX	4 years ago
ts_cache.c	Update copyright for 2021	5 years ago
typcache.c	Disable anonymous record hash support except in special cases	4 years ago