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Michael Paquier 65f4976189 Add assertion check for WAL receiver state during stream-archive transition 
When the startup process switches from streaming to archive as WAL
source, we avoid calling ShutdownWalRcv() if the WAL receiver is not
streaming, based on WalRcvStreaming().  WALRCV_STOPPING is a state set
by ShutdownWalRcv(), called only by the startup process, meaning that it
should not be possible to reach this state while in
WaitForWALToBecomeAvailable().

This commit adds an assertion to make sure that a WAL receiver is never
in a WALRCV_STOPPING state should the startup process attempt to reset
InstallXLogFileSegmentActive.

Idea suggested by Noah Misch.

Author: Xuneng Zhou <xunengzhou@gmail.com>
Discussion: https://postgr.es/m/19093-c4fff49a608f82a0@postgresql.org
2025-11-04 13:14:46 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Remove traces of support for Sun Studio compiler 2025-09-12 07:39:05 +02:00
contrib Fix contrib/ltree's subpath() with negative offset. 2025-11-01 13:25:42 -04:00
doc Doc: cover index CONCURRENTLY causing errors in INSERT ... ON CONFLICT. 2025-11-03 12:57:09 -08:00
src Add assertion check for WAL receiver state during stream-archive transition 2025-11-04 13:14:46 +09:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml ci: macos: Upgrade to Sequoia 2025-10-30 16:08:21 -04:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add script to keep .editorconfig in sync with .gitattributes 2025-02-01 10:09:45 +01:00
.git-blame-ignore-revs Add previous commit to .git-blame-ignore-revs. 2025-10-21 10:02:19 -05:00
.gitattributes Fix git whitespace warning 2025-08-15 10:32:35 +02:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Use C11 char16_t and char32_t for Unicode code points. 2025-10-29 14:17:13 -07:00
configure.ac Use C11 char16_t and char32_t for Unicode code points. 2025-10-29 14:17:13 -07:00
COPYRIGHT Align organization wording in copyright statement 2025-05-16 11:20:07 -04:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Remove AIX support 2024-02-28 15:17:23 +04:00
meson.build Use C11 char16_t and char32_t for Unicode code points. 2025-10-29 14:17:13 -07:00
meson_options.txt Add support for basic NUMA awareness 2025-04-07 23:08:17 +02:00
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/.