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Fujii Masao f3da70a805 Improve the error message in COPY with HEADER option. 
The error message reported for invalid values of the HEADER option in COPY
command previously used the term "non-negative integer", which is
discouraged by the Error Message Style Guide because it is ambiguous about
whether zero is allowed.

This commit improves the error message by replacing "non-negative integer"
there with "an integer value greater than or equal to zero" to make
the accepted values explicit.

Author: Shinya Kato <shinya11.kato@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@kurilemu.de>
Reviewed-by: Steven Niu <niushiji@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/CAHGQGwE86PcuPZbP=aurmW7Oo=eycF10gxjErWq4NmY-5TTX4Q@mail.gmail.com
2026-01-22 10:13:07 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Update copyright for 2026 2026-01-01 13:24:10 -05:00
contrib Force standard_conforming_strings to always be ON. 2026-01-21 15:08:38 -05:00
doc Force standard_conforming_strings to always be ON. 2026-01-21 15:08:38 -05:00
src Improve the error message in COPY with HEADER option. 2026-01-22 10:13:07 +09:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml ci: Configure g++ with 32-bit for 32-bit build 2026-01-09 08:58:50 +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 tests: Add a test C++ extension module 2026-01-20 16:42:30 +01:00
configure.ac tests: Add a test C++ extension module 2026-01-20 16:42:30 +01:00
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 Remove AIX support 2024-02-28 15:17:23 +04:00
meson.build Refactor some SIMD and popcount macros. 2026-01-21 14:21:00 -06:00
meson_options.txt Update copyright for 2026 2026-01-01 13:24:10 -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/.