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Peter Eisentraut 905e44152a Allow setting the collation strength in ICU tailoring rules
There was a bug that if you created an ICU collation with tailoring
rules, any strength specification inside the rules was ignored.  This
was because we called ucol_openRules() with UCOL_DEFAULT_STRENGTH for
the strength argument, which overrides the strength.  This was because
of faulty guidance in the ICU documentation, which has since been
fixed.  The correct invocation is to use UCOL_DEFAULT for the strength
argument.

This fixes bug #18771 and bug #19425.

Author: Daniel Verite <daniel@manitou-mail.org>
Reported-by: Ruben Ruiz <ruben.ruizcuadrado@gmail.com>
Reported-by: dorian.752@live.fr
Reported-by: Todd Lang <Todd.Lang@D2L.com>
Discussion: https://www.postgresql.org/message-id/flat/YT2PPF959236618377A072745A280E278F4BE1DA@YT2PPF959236618.CANPRD01.PROD.OUTLOOK.COM
Discussion: https://www.postgresql.org/message-id/flat/18771-98bb23e455b0f367@postgresql.org
Discussion: https://www.postgresql.org/message-id/flat/19425-58915e19dacd4f40%40postgresql.org
2026-03-18 08:58:47 +01:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
contrib pg_plan_advice: Avoid a crash under GEQO. 2026-03-17 14:25:43 -04:00
doc Add more columns to pg_stats, pg_stats_ext, and pg_stats_ext_exprs. 2026-03-17 09:26:27 -05:00
src Allow setting the collation strength in ICU tailoring rules 2026-03-18 08:58:47 +01:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Revert "Change default value of default_toast_compression to "lz4"" 2026-03-05 08:25:35 +09:00
.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 b6eb8dde6b to .git-blame-ignore-revs. 2026-03-13 11:45:34 -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 Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
configure.ac Move -ffast-math defense to float.c and remove the configure check. 2026-03-15 19:34:52 -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 Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
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

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/.