Heikki Linnakangas f8d30182b1 Fix predicate-locking of HOT updated rows. ... In serializable mode, heap_hot_search_buffer() incorrectly acquired a predicate lock on the root tuple, not the returned tuple that satisfied the visibility checks. As explained in README-SSI, the predicate lock does not need to be copied or extended to other tuple versions, but for that to work, the correct, visible, tuple version must be locked in the first place. The original SSI commit had this bug in it, but it was fixed back in 2013, in commit 81fbbfe335. But unfortunately, it was reintroduced a few months later in commit b89e151054. Wising up from that, add a regression test to cover this, so that it doesn't get reintroduced again. Also, move the code that sets 't_self', so that it happens at the same time that the other HeapTuple fields are set, to make it more clear that all the code in the loop operate on the "current" tuple in the chain, not the root tuple. Bug spotted by Andres Freund, analysis and original fix by Thomas Munro, test case and some additional changes to the fix by Heikki Linnakangas. Backpatch to all supported versions (9.4). Discussion: https://www.postgresql.org/message-id/20190731210630.nqhszuktygwftjty%40alap3.anarazel.de		2019-08-07 12:41:00 +03:00
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backend	Fix predicate-locking of HOT updated rows.	2019-08-07 12:41:00 +03:00
bin	Translation updates	2019-08-05 15:54:23 +02:00
common	In pg_log_generic(), be more paranoid about preserving errno.	2019-07-06 11:25:48 -04:00
fe_utils	Update stale comments, and fix comment typos.	2019-06-08 10:12:26 -07:00
include	Stamp 12beta3.	2019-08-05 17:10:44 -04:00
interfaces	Translation updates	2019-08-05 15:54:23 +02:00
makefiles	Define WIN32_STACK_RLIMIT throughout win32 and cygwin builds.	2019-04-09 08:25:39 -07:00
pl	Translation updates	2019-08-05 15:54:23 +02:00
port	Fix more typos and inconsistencies in the tree	2019-06-17 16:13:16 +09:00
template	Yet further rethinking of build changes for macOS Mojave.	2018-11-02 18:54:00 -04:00
test	Fix predicate-locking of HOT updated rows.	2019-08-07 12:41:00 +03:00
timezone	Tweak our special-case logic for the IANA "Factory" timezone.	2019-07-26 13:07:08 -04:00
tools	Fix syntax error in commit 20e99cddd.	2019-07-25 14:42:08 -04:00
tutorial	Phase 2 pgindent run for v12.	2019-05-22 13:04:48 -04:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
DEVELOPERS	Replace a couple of references to files that no longer exist in the source	2009-05-04 08:08:47 +00:00
Makefile	Fix partial-build problems introduced by having more generated headers.	2018-04-09 16:42:10 -04:00
Makefile.global.in	Consistently test for in-use shared memory.	2019-04-12 22:36:38 -07:00
Makefile.shlib	Ensure static libraries have correct mod time even if ranlib messes it up.	2018-11-29 15:53:44 -05:00
nls-global.mk	Move logging.h and logging.c from src/fe_utils/ to src/common/.	2019-05-14 14:20:10 -04:00