Tom Lane af72b08894 Invent qsort_interruptible(). ... Justin Pryzby reported that some scenarios could cause gathering of extended statistics to spend many seconds in an un-cancelable qsort() operation. To fix, invent qsort_interruptible(), which is just like qsort_arg() except that it will also do CHECK_FOR_INTERRUPTS every so often. This bloats the backend by a couple of kB, which seems like a good investment. (We considered just enabling CHECK_FOR_INTERRUPTS in the existing qsort and qsort_arg functions, but there are some callers for which that'd demonstrably be unsafe. Opt-in seems like a better way.) For now, just apply qsort_interruptible() in statistics collection. There's probably more places where it could be useful, but we can always change other call sites as we find problems. Back-patch to v14. Before that we didn't have extended stats on expressions, so that the problem was less severe. Also, this patch depends on the sort_template infrastructure introduced in v14. Tom Lane and Justin Pryzby Discussion: https://postgr.es/m/20220509000108.GQ28830@telsasoft.com		2022-07-12 16:30:36 -04:00
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access	Prevent access to no-longer-pinned buffer in heapam_tuple_lock().	2022-04-13 13:35:02 -04:00
bootstrap	Update copyright for 2021	2021-01-02 13:06:25 -05:00
catalog	Correct comment and some documentation about REPLICA_IDENTITY_INDEX	2021-12-22 16:38:38 +09:00
commands	Don't overlook indexes during parallel VACUUM.	2021-11-02 12:06:16 -07:00
common	Revert error handling improvements for cryptohashes	2022-01-14 11:25:39 +09:00
datatype	Update copyright for 2021	2021-01-02 13:06:25 -05:00
executor	Fix SPI's handling of errors during transaction commit.	2022-06-22 12:11:59 -04:00
fe_utils	Allow db.schema.table patterns, but complain about random garbage.	2022-04-20 11:39:44 -04:00
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	Revert error handling improvements for cryptohashes	2022-01-14 11:25:39 +09:00
mb	Fix incautious handling of possibly-miscoded strings in client code.	2021-06-07 14:15:25 -04:00
nodes	Fix incorrect comments for Memoize struct	2022-05-19 17:14:56 +12:00
optimizer	Flush Memoize cache when non-key parameters change, take 2	2021-11-24 23:29:56 +13:00
parser	Fix failure to validate the result of select_common_type().	2022-01-29 11:41:18 -05:00
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	Fix data inconsistency between publisher and subscriber.	2022-06-16 08:32:10 +05:30
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 lock assertions in dshash.c.	2022-07-11 15:47:12 +12:00
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	Fix relptr's encoding of the base address.	2022-06-27 11:45:03 +12:00
.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	Suppress warning about stack_base_ptr with late-model GCC.	2022-02-17 22:45:34 -05:00
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	Invent qsort_interruptible().	2022-07-12 16:30:36 -04:00
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