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Amit Kapila 6ce035ffff pg_createsubscriber: Fix duplicate publication name rejection. 
pg_createsubscriber rejected duplicate --publication values while parsing
command-line options, even when the duplicate names referred to
publications in different databases. Since publication names are
database-local objects, the same name is perfectly valid across multiple
databases.

This restriction was not a practical problem before commit 85ddcc2f4c,
which added support for reusing pre-existing publications. After that
change, users who have identically-named publications in multiple
databases (a common convention) could not use the feature without renaming
their publications.

The analogous restriction on --subscription names is intentionally kept as
they are reused as replication slot names, which are cluster-global, so
allowing duplicate subscription names without additional guards could
cause a slot-name collision. That work is left for a future release.

Author: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Shlok Kyal <shlok.kyal.oss@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com>
Discussion: https://postgr.es/m/B08A7C89-B3DE-4C1D-A671-32AD8BAB7E22@gmail.com
2026-06-08 12:19:29 +05:30
.github ci: Add GitHub Actions based CI 2026-06-04 14:55:57 -04:00
config Update config.guess and config.sub 2026-04-09 11:26:14 +02:00
contrib pg_surgery: Fix off-by-one bug with heap offset 2026-06-06 08:16:36 +09:00
doc Doc: Add missing SGML markup in alter_publication.sgml. 2026-06-08 11:26:25 +05:30
src pg_createsubscriber: Fix duplicate publication name rejection. 2026-06-08 12:19:29 +05:30
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add previous commit to .git-blame-ignore-revs. 2026-06-04 10:16:21 -05:00
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.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 Stamp 19beta1. 2026-06-01 16:02:13 -04:00
configure.ac Stamp 19beta1. 2026-06-01 16:02:13 -04:00
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
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Stamp 19beta1. 2026-06-01 16:02:13 -04:00
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.

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/.