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Michael Paquier 4545cee303 Forbid pg_get_multixact_stats() during recovery MultiXactState->oldestOffset is not maintained during recovery, so calling pg_get_multixact_stats() in this context would report misleading information. We could try to work this out by adding this field to the control file, for example, but such a change would be too invasive at this stage of the v19 development cycle. The information of pg_get_multixact_stats() is usually useful to control the need of some VACUUM or some freezing, operations that cannot happen on a standby, so the argument to make the function work while recovery is in progress gets thinner with this point in the balance. The function is updated to return an ERROR when called under RecoveryInProgress(). Per discussion with Heikki Linnakangas and Naga Appani. Reported-by: Noah Misch <noah@leadboat.com> Discussion: https://postgr.es/m/CA+QeY+DcnsZRL4GZD8JyJu5HD-d6p8_9M5kT4jgF3gq3Rh8n4w@mail.gmail.com Discussion: https://postgr.es/m/20260827231757.78.noahmisch@microsoft.com Backpatch-through: 19		2026-09-24 09:36:05 +09:00
.github	ci: Generate crashlogs on Windows	2026-07-17 11:48:35 -04:00
config	Revert "Use -isystem for LLVM include directories"	2026-09-12 15:50:08 +02:00
contrib	Add VM corruption check to verify_heapam()	2026-09-23 18:21:44 -04:00
doc	doc: Clarify phase descriptions of pg_stat_progress_repack.	2026-09-23 14:57:48 -07:00
src	Forbid pg_get_multixact_stats() during recovery	2026-09-24 09:36:05 +09:00
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aclocal.m4	autoconf: Move export_dynamic determination to configure	2022-12-06 18:55:28 -08:00
configure	Revert "Use -isystem for LLVM include directories"	2026-09-12 15:50:08 +02:00
configure.ac	Require ICU 55 or later	2026-07-16 12:03:05 +02:00
COPYRIGHT	Update copyright for 2026	2026-01-01 13:24:10 -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	Restore AIX support.	2026-02-23 13:34:22 -05:00
meson.build	Revert "Use -isystem for LLVM include directories"	2026-09-12 15:50:08 +02:00
meson_options.txt	Revert "Add built-in fuzzing harnesses for security testing."	2026-04-10 09:53:58 -04:00
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.

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/.