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Michael Paquier 773c51dd39 Fix MakeTransitionCaptureState() to return a consistent result 
When an UPDATE trigger referencing a new table and a DELETE trigger
referencing an old table are both present, MakeTransitionCaptureState()
returns an inconsistent result for UPDATE commands in its set of flags
and tuplestores holding the TransitionCaptureState for transition
tables.

As proved by the test added here, this issue causes a crash in v14 and
earlier versions (down to 11, actually, older versions do not support
triggers on partitioned tables) during cross-partition updates on a
partitioned table.  v15 and newer versions are safe thanks to
7103ebb7aa.

This commit fixes the function so that it returns a consistent state
by using portions of the changes made in commit 7103ebb7aa for v13 and
v14.  v15 and newer versions are slightly tweaked to match with the
older versions, mainly for consistency across branches.

Author: Kyotaro Horiguchi
Discussion: https://postgr.es/m/20250207.150238.968446820828052276.horikyota.ntt@gmail.com
Backpatch-through: 13
2025-02-13 16:30:58 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Remove flex version checks 2025-01-17 09:30:42 +01:00
contrib Skip logical decoding of already-aborted transactions. 2025-02-12 16:31:34 -08:00
doc Remove unnecessary (char *) casts [string] 2025-02-12 08:49:18 +01:00
src Fix MakeTransitionCaptureState() to return a consistent result 2025-02-13 16:30:58 +09:00
.cirrus.star Remove duplicate words in docs and code comments. 2023-10-09 09:18:47 +05:30
.cirrus.tasks.yml ci: Collect core files on NetBSD and OpenBSD 2025-02-12 09:40:20 -05:00
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aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
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configure.ac Remove support for linking with libeay32 and ssleay32 2025-02-06 20:26:46 +01:00
COPYRIGHT Update copyright for 2025 2025-01-01 11:21:55 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
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Makefile Remove AIX support 2024-02-28 15:17:23 +04:00
meson.build meson: Fix failure to detect bsd_auth.h presence 2025-02-12 08:15:53 -05:00
meson_options.txt Update copyright for 2025 2025-01-01 11:21:55 -05:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

README.md

PostgreSQL Database Management System

This directory contains the source code distribution of the PostgreSQL database management system.

PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.