David Rowley 2ccd8fb29d Consider parallel awareness when removing single-child Appends ... 8edd0e794 added some code to remove Append and MergeAppend nodes when they contained a single child node. As it turned out, this was unsafe to do when the Append/MergeAppend was parallel_aware and the child node was not. Removing the Append/MergeAppend, in this case, could lead to the child plan being called multiple times by parallel workers when it was unsafe to do so. Here we fix this by just not removing the Append/MergeAppend when the parallel_aware flag of the parent and child node don't match. Reported-by: Yura Sokolov Bug: #17335 Discussion: https://postgr.es/m/b59605fecb20ba9ea94e70ab60098c237c870628.camel%40postgrespro.ru Backpatch-through: 12, where 8edd0e794 was first introduced		2022-01-25 21:15:40 +13:00
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backend	Consider parallel awareness when removing single-child Appends	2022-01-25 21:15:40 +13:00
bin	Avoid calling gettext() in signal handlers.	2022-01-17 13:30:04 -05:00
common	Fix buffer overrun in unicode string normalization with empty input	2021-11-11 15:01:57 +09:00
fe_utils	Fix incautious handling of possibly-miscoded strings in client code.	2021-06-07 14:15:25 -04:00
include	Fix limitations on what SQL commands can be issued to a walsender.	2022-01-24 15:33:34 -05:00
interfaces	Fix race condition in gettext() initialization in libpq and ecpglib.	2022-01-21 15:36:29 -05:00
makefiles	Select CFLAGS_SL at configure time, not in platform-specific Makefiles.	2019-10-21 12:32:35 -04:00
pl	Remove unneeded Python includes	2021-11-25 14:31:01 +01:00
port	Stamp 12.9.	2021-11-08 17:02:19 -05:00
template	Further tweaking of PG_SYSROOT heuristics for macOS.	2021-01-20 12:07:35 -05:00
test	Flush table's relcache during ALTER TABLE ADD PRIMARY KEY USING INDEX.	2022-01-22 13:32:40 -05:00
timezone	Update time zone data files to tzdata release 2021e.	2021-10-29 11:38:47 -04:00
tools	Allow clean.bat to be run from anywhere	2022-01-20 10:21:02 -05:00
tutorial	tutorial: land height is "elevation", not "altitude"	2021-03-10 20:25:18 -05:00
.gitignore
DEVELOPERS
Makefile	Fix partial-build problems introduced by having more generated headers.	2018-04-09 16:42:10 -04:00
Makefile.global.in	Fix prove_installcheck to use correct paths when used with PGXS	2021-07-01 08:47:04 -04:00
Makefile.shlib	Fix pkg-config files for static linking	2021-09-06 09:43:18 +02:00
nls-global.mk	NLS: Fix backend gettext triggers	2019-09-23 09:05:50 +02:00