Alvaro Herrera 47a3a13178 Fix deadlock hazard in CREATE INDEX CONCURRENTLY ... Multiple sessions doing CREATE INDEX CONCURRENTLY simultaneously are supposed to be able to work in parallel, as evidenced by fixes in commit c3d09b3bd2 specifically to support this case. In reality, one of the sessions would be aborted by a misterious "deadlock detected" error. Jeff Janes diagnosed that this is because of leftover snapshots used for system catalog scans -- this was broken by 8aa3e47510 keeping track of (registering) the catalog snapshot. To fix the deadlocks, it's enough to de-register that snapshot prior to waiting. Backpatch to 9.4, which introduced MVCC catalog scans. Include an isolationtester spec that 8 out of 10 times reproduces the deadlock with the unpatched code for me (Álvaro). Author: Jeff Janes Diagnosed-by: Jeff Janes Reported-by: Jeremy Finzel Discussion: https://postgr.es/m/CAMa1XUhHjCv8Qkx0WOr1Mpm_R4qxN26EibwCrj0Oor2YBUFUTg%40mail.gmail.com		2018-01-02 19:16:16 -03:00
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backend	Fix deadlock hazard in CREATE INDEX CONCURRENTLY	2018-01-02 19:16:16 -03:00
bin	Translation updates	2017-11-05 17:04:00 -05:00
common	Unlink static libraries before rebuilding them.	2015-03-01 13:06:33 -05:00
include	Perform a lot more sanity checks when freezing tuples.	2017-12-14 18:20:48 -08:00
interfaces	Add post-2010 ecpg tests to checktcp.	2017-11-11 14:41:50 -08:00
makefiles	Always use -fPIC, not -fpic, when building shared libraries with gcc.	2017-06-01 13:32:56 -04:00
pl	Support linking with MinGW-built Perl.	2017-11-23 20:29:48 -08:00
port	Stamp 9.4.15.	2017-11-06 17:13:17 -05:00
template	AIX: Test the -qlonglong option before use.	2015-07-17 03:01:35 -04:00
test	Fix deadlock hazard in CREATE INDEX CONCURRENTLY	2018-01-02 19:16:16 -03:00
timezone	Replace raw timezone source data with IANA's new compact format.	2017-11-25 15:30:44 -05:00
tools	MSVC 2012+: Permit linking to 32-bit, MinGW-built libraries.	2017-12-09 00:58:59 -08:00
tutorial	pgindent run for 9.4	2014-05-06 12:12:18 -04:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
bcc32.mak	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Install TAP test infrastructure so it's available for extension testing.	2016-09-23 15:50:00 -04:00
Makefile.global.in	PL/Perl portability fix: absorb relevant -D switches from Perl.	2017-07-31 12:38:35 -04:00
Makefile.shlib	Fix typos in comments.	2017-02-06 11:34:24 +02:00
nls-global.mk	nls-global.mk: search build dir for source files, too	2016-06-07 18:55:18 -04:00
win32.mak	Autoconfiscate selection of 64-bit int type for 64-bit large object API.	2012-10-07 21:52:43 -04:00