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907d3dd531
postgresql/src
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Amit Kapila 907d3dd531 Revert the commits related to allowing page lock to conflict among parallel group members. 
This commit reverts the work done by commits 3ba59ccc89 and 72e78d831a.
Those commits were incorrect in asserting that we never acquire any other
heavy-weight lock after acquring page lock other than relation extension
lock. We can acquire a lock on catalogs while doing catalog look up after
acquring page lock.

This won't impact any existing feature but we need to think some other way
to achieve this before parallelizing other write operations or even
improving the parallelism in vacuum (like allowing multiple workers
for an index).

Reported-by: Jaime Casanova
Author: Amit Kapila
Backpatch-through: 13
Discussion: https://postgr.es/m/CAJKUy5jffnRKNvRHKQ0LynRb0RJC-o4P8Ku3x9vGAVLwDBWumQ@mail.gmail.com
2023-07-06 08:28:27 +05:30
..
backend Revert the commits related to allowing page lock to conflict among parallel group members. 2023-07-06 08:28:27 +05:30
bin Improve pg_basebackup long file name test Windows robustness 2023-07-03 10:07:15 -04:00
common Fix JSON error reporting for many cases of erroneous string values. 2023-03-13 15:19:00 -04:00
fe_utils Use correct connection for cancellation in frontend's parallel slots 2022-08-27 15:22:07 +09:00
include Fix misbehavior of EvalPlanQual checks with multiple result relations. 2023-05-19 14:26:34 -04:00
interfaces Translation updates 2023-05-08 14:29:57 +02:00
makefiles
pl Translation updates 2023-05-08 14:29:57 +02:00
port Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:53 +09:00
template On NetBSD, force dynamic symbol resolution at postmaster start. 2022-08-30 17:28:55 -04:00
test pgstat: fix subscription stats entry leak. 2023-07-05 14:49:53 +09:00
timezone Update time zone data files to tzdata release 2023c. 2023-04-18 14:46:39 -04:00
tools Fix make_etags breakage on certain platforms. 2023-06-14 11:11:18 +09:00
tutorial Doc: sync src/tutorial/basics.source with SGML documentation. 2022-11-19 13:09:14 -05:00
.gitignore
DEVELOPERS
Makefile
Makefile.global.in Fix prove_installcheck when used with PGXS 2023-05-05 07:10:15 +02:00
Makefile.shlib AIX: Fix missing libpq symbols by respecting SHLIB_EXPORTS. 2021-09-06 11:27:59 -07:00
nls-global.mk Improve frontend error logging style. 2022-04-08 14:55:14 -04:00