David Rowley 6c32c09777 Allow Memoize to operate in binary comparison mode ... Memoize would always use the hash equality operator for the cache key types to determine if the current set of parameters were the same as some previously cached set. Certain types such as floating points where -0.0 and +0.0 differ in their binary representation but are classed as equal by the hash equality operator may cause problems as unless the join uses the same operator it's possible that whichever join operator is being used would be able to distinguish the two values. In which case we may accidentally return in the incorrect rows out of the cache. To fix this here we add a binary mode to Memoize to allow it to the current set of parameters to previously cached values by comparing bit-by-bit rather than logically using the hash equality operator. This binary mode is always used for LATERAL joins and it's used for normal joins when any of the join operators are not hashable. Reported-by: Tom Lane Author: David Rowley Discussion: https://postgr.es/m/3004308.1632952496@sss.pgh.pa.us Backpatch-through: 14, where Memoize was added		2021-11-24 10:07:38 +13:00
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access	Fix CREATE INDEX CONCURRENTLY for the newest prepared transactions.	2021-10-23 18:36:42 -07:00
bootstrap	Update copyright for 2021	2021-01-02 13:06:25 -05:00
catalog	Fix WAL replay in presence of an incomplete record	2021-09-29 11:41:01 -03:00
commands	Don't overlook indexes during parallel VACUUM.	2021-11-02 12:06:16 -07:00
common	Revert refactoring of hex code to src/common/	2021-08-19 09:20:19 +09:00
datatype	Update copyright for 2021	2021-01-02 13:06:25 -05:00
executor	Fix checking of query type in plpgsql's RETURN QUERY command.	2021-10-03 13:21:20 -04:00
fe_utils	psql: Refine lexing of BEGIN...END blocks in CREATE FUNCTION statements	2021-04-16 12:20:23 +02:00
foreign	Initial pgindent and pgperltidy run for v14.	2021-05-12 13:14:10 -04:00
jit	jit: Do not try to shut down LLVM state in case of LLVM triggered errors.	2021-09-13 18:15:28 -07:00
lib	Fix frontend version of sh_error() in simplehash.h.	2021-10-22 16:43:38 -04:00
libpq	Reject extraneous data after SSL or GSS encryption handshake.	2021-11-08 11:01:43 -05:00
mb	Fix incautious handling of possibly-miscoded strings in client code.	2021-06-07 14:15:25 -04:00
nodes	Allow Memoize to operate in binary comparison mode	2021-11-24 10:07:38 +13:00
optimizer	Allow Memoize to operate in binary comparison mode	2021-11-24 10:07:38 +13:00
parser	Disable anonymous record hash support except in special cases	2021-09-08 09:55:18 +02:00
partitioning	Fix relcache inconsistency hazard in partition detach	2021-04-22 15:13:25 -04:00
port	Get rid of artificial restriction on hash table sizes on Windows.	2021-07-25 14:02:27 -04:00
portability	Fix another portability bug in recent pgbench commit.	2021-03-10 23:20:41 +13:00
postmaster	Remove temporary files after backend crash	2021-03-18 17:38:28 +01:00
regex	Improve memory management in regex compiler.	2021-02-26 13:52:10 -05:00
replication	Reset properly snapshot export state during transaction abort	2021-10-18 11:56:48 +09:00
rewrite	Adjust locations which have an incorrect copyright year	2021-06-04 12:19:50 +12:00
snowball	Update snowball	2021-02-19 08:10:15 +01:00
statistics	Extended statistics on expressions	2021-03-27 00:01:11 +01:00
storage	Fix parallel operations that prevent oldest xmin from advancing.	2021-11-19 09:14:09 +05:30
tcop	Centralize the logic for protective copying of utility statements.	2021-06-18 11:22:58 -04:00
tsearch	Don't leak compiled regex(es) when an ispell cache entry is dropped.	2021-03-18 22:22:47 -04:00
utils	Allow Memoize to operate in binary comparison mode	2021-11-24 10:07:38 +13:00
.gitignore	Refactor dlopen() support	2018-09-06 11:33:04 +02:00
c.h	Work around issues in MinGW-64's setjmp/longjmp support.	2021-03-15 12:34:17 -04:00
fmgr.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
funcapi.h	Reconsider the handling of procedure OUT parameters.	2021-06-10 17:11:36 -04:00
getaddrinfo.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
getopt_long.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
Makefile	Build in some knowledge about foreign-key relationships in the catalogs.	2021-02-02 17:11:55 -05:00
miscadmin.h	Get rid of artificial restriction on hash table sizes on Windows.	2021-07-25 14:02:27 -04:00
pg_config.h.in	Probe for preadv/pwritev in a more macOS-friendly way.	2021-07-12 19:17:35 -04:00
pg_config_ext.h.in	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00
pg_config_manual.h	Rename debug_invalidate_system_caches_always to debug_discard_caches.	2021-07-13 15:01:01 -04:00
pg_getopt.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
pg_trace.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
pgstat.h	Fix performance regression from session statistics.	2021-09-16 02:10:57 -07:00
pgtar.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
pgtime.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
port.h	Move bsearch_arg to src/port	2021-03-23 00:11:22 +01:00
postgres.h	Fix misleading comments about TOAST access macros.	2021-09-08 14:11:35 -04:00
postgres_ext.h	Phase 2 of pgindent updates.	2017-06-21 15:19:25 -04:00
postgres_fe.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
rusagestub.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00
windowapi.h	Update copyright for 2021	2021-01-02 13:06:25 -05:00