upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-05-25 02:40:42 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
Base de données relationnelle
62081 commits 38 branches 684 tags 870 MiB
C 84.4%
PLpgSQL 6.2%
Perl 5%
Yacc 1.2%
Meson 0.7%
Other 2.4%
Find a file
Tom Lane 09036dc71c Avoid faulty alignment of Datums in build_sorted_items(). 
If sizeof(Pointer) is 4 then sizeof(SortItem) will be 12, so that
if data->numrows is odd then we placed the values array at a location
that's not a multiple of 8.  That was fine when sizeof(Datum) was also
4, but in the wake of commit 2a600a93c it makes some alignment-picky
machines unhappy.  (You need a 32-bit machine that nonetheless expects
8-byte alignment of 8-byte quantities, which is an odd-seeming
combination but it does exist outside the Intel universe.)

To fix, MAXALIGN the space allocated to the SortItem array.
In passing, let's make the "len" variable be Size not int,
just for paranoia's sake.

This code was arguably not too safe even before 2a600a93c, but at
present I don't see a strong argument for back-patching.

Reported-by: Tomas Vondra <tomas@vondra.me>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/87036018-8d70-40ad-a0ac-192b07bd7b04@vondra.me
2025-09-10 17:51:24 -04:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Improve prep_buildtree 2025-08-04 14:06:58 +02:00
contrib Don't generate fake "*SELECT*" or "*SELECT* %d" subquery aliases. 2025-09-08 11:50:33 -04:00
doc Fix documentation for shmem_startup_hook. 2025-09-09 14:35:30 -05:00
src Avoid faulty alignment of Datums in build_sorted_items(). 2025-09-10 17:51:24 -04:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml ci: Explicitly enable Meson features 2025-09-03 07:54:24 -07:00
.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 Add script to keep .editorconfig in sync with .gitattributes 2025-02-01 10:09:45 +01:00
.git-blame-ignore-revs Add commit 1d1612aec7 to .git-blame-ignore-revs. 2025-07-29 10:32:53 -05:00
.gitattributes Fix git whitespace warning 2025-08-15 10:32:35 +02:00
.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 Raise C requirement to C11 2025-08-26 11:50:46 +02:00
configure.ac Raise C requirement to C11 2025-08-26 11:50:46 +02:00
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 oauth: Explicitly depend on -pthread 2025-08-26 14:16:31 -07:00
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/.