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Tom Lane aeb07c55fa Sync our copy of the timezone library with IANA release tzcode2026b.
This was moderately tedious, because upstream has been busy
since we last did this in 2020.

Notably, they changed the signatures of both tzload() and tzparse(),
which we'd unwisely exposed as API for callers to use.  I concluded
that the best answer was to change them both back to "static" and
instead expose a new API function of our own choosing, pg_tzload().

That change may be a sufficient reason not to back-patch this update,
as I'd normally want to do.  There's probably not a good reason for
extensions to be calling those functions, but on the other hand
there are few pressing reasons for a back-patch.  The one bug we have
run into (a Valgrind uninitialized-data complaint about zic) appears
to have no field-visible consequences.

A few of the files generated by this version of zic are not
byte-for-byte the same as before, but "zdump -v" avers that
they represent the same sets of transitions.

Discussion: https://postgr.es/m/2294297.1780270682@sss.pgh.pa.us
2026-07-01 10:56:46 -04:00
.github ci: Improve ccache handling 2026-06-08 15:26:47 -04:00
config Update config.guess and config.sub 2026-04-09 11:26:14 +02:00
contrib Fix mismatched deallocation functions 2026-07-01 13:50:08 +02:00
doc Warn on password auth with MD5-encrypted passwords 2026-07-01 20:57:28 +09:00
src Sync our copy of the timezone library with IANA release tzcode2026b. 2026-07-01 10:56:46 -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 previous 2 commits to .git-blame-ignore-revs. 2026-06-29 15:33:52 -04:00
.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 HEAD as 20devel. 2026-06-29 16:29:11 -04:00
configure.ac Stamp HEAD as 20devel. 2026-06-29 16:29:11 -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 HEAD as 20devel. 2026-06-29 16:29:11 -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

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/.