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Tom Lane cb77bc0442 Further stabilize a postgres_fdw test case. 
This patch causes one postgres_fdw test case to revert to the plan
it used before aa86129e1, i.e., using a remote sort in preference to
local sort.  That decision is actually a coin-flip because cost_sort()
will give the same answer on both sides, so that the plan choice comes
down to little more than roundoff error.  In consequence, the test
output can change as a result of even minor changes in nearby costs,
as we saw in aa86129e1 (compare also b690e5fac and 4b14e1871).

b690e5fac's solution to stabilizing the adjacent test case was to
disable sorting locally, and here we extend that to the currently-
problematic case.  Without this, the following patch would cause this
plan choice to change back in this same way, for even less apparent
reason.

Author: Tom Lane <tgl@sss.pgh.pa.us>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Discussion: https://postgr.es/m/2551253.1766952956@sss.pgh.pa.us
2025-12-29 12:53:49 -05:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Refactor static_assert() support. 2025-12-15 11:54:23 +01:00
contrib Further stabilize a postgres_fdw test case. 2025-12-29 12:53:49 -05:00
doc Fix incorrectly spelled city name 2025-12-27 23:47:40 +01:00
src Fix Mkvcbuild.pm builds of test_cloexec.c. 2025-12-29 15:47:31 +13:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml headerscheck ccache support 2025-12-04 11:23:23 +01:00
.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 Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add commit 86b276a4a9 to .git-blame-ignore-revs. 2025-12-05 14:21:12 -06:00
.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 Refactor static_assert() support. 2025-12-15 11:54:23 +01:00
configure.ac Refactor static_assert() support. 2025-12-15 11:54:23 +01:00
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 Refactor static_assert() support. 2025-12-15 11:54:23 +01:00
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/.