postgresql

mirror of https://github.com/postgres/postgres.git synced 2026-02-24 18:37:22 -05:00

Base de données relationnelle

Find a file

Noah Misch b2ed1682d4 Fix failure to copy setlocale() return value. POSIX permits setlocale() calls to invalidate any previous setlocale() return values, but commit `5f538ad004` neglected to account for setlocale(LC_CTYPE, NULL) doing so. The effect was to set the LC_CTYPE environment variable to an unintended value. pg_perm_setlocale() sets this variable to assist PL/Perl; without it, Perl would undo PostgreSQL's locale settings. The known-affected configurations are 32-bit, release builds using Visual Studio 2012 or Visual Studio 2013. Visual Studio 2010 is unaffected, as were all buildfarm-attested configurations. In principle, this bug could leave the wrong LC_CTYPE in effect after PL/Perl use, which could in turn facilitate problems like corrupt tsvector datums. No known platform experiences that consequence, because PL/Perl on Windows does not use this environment variable. The bug has been user-visible, as early postmaster failure, on systems with Windows ANSI code page set to CP936 for "Chinese (Simplified, PRC)" and probably on systems using other multibyte code pages. (SetEnvironmentVariable() rejects values containing character data not valid under the Windows ANSI code page.) Back-patch to 9.4, where the faulty commit first appeared. Reported by Didi Hu and 林鹏程. Reviewed by Tom Lane, though this fix strategy was not his first choice.		2015-06-20 12:10:56 -04:00
config	Remove configure check prohibiting threaded libpython on OpenBSD.	2015-05-26 22:14:59 -04:00
contrib	pgcrypto: Report errant decryption as "Wrong key or corrupt data".	2015-05-18 10:02:35 -04:00
doc	In immediate shutdown, postmaster should not exit till children are gone.	2015-06-19 14:23:39 -04:00
src	Fix failure to copy setlocale() return value.	2015-06-20 12:10:56 -04:00
.dir-locals.el	Update Emacs configuration	2013-08-13 20:08:44 -04:00
.gitattributes	gitattributes: Ignore time zone data files for whitespace checks	2014-07-22 00:12:28 -04:00
.gitignore	Add *.pot to .gitignore	2013-10-19 10:56:52 -04:00
aclocal.m4	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
configure	Stamp 9.4.4.	2015-06-09 15:29:38 -04:00
configure.in	Stamp 9.4.4.	2015-06-09 15:29:38 -04:00
COPYRIGHT	Update copyright for 2015	2015-01-06 11:43:46 -05:00
GNUmakefile.in	Add TAP tests for client programs	2014-04-14 21:33:46 -04:00
HISTORY	Improve text of stub HISTORY file.	2014-02-12 18:16:17 -05:00
Makefile	Allow make check in PL directories	2011-02-15 06:52:12 +02:00
README	Don't generate plain-text HISTORY and src/test/regress/README anymore.	2014-02-10 20:48:04 -05:00
README.git	Don't generate plain-text HISTORY and src/test/regress/README anymore.	2014-02-10 20:48:04 -05:00

README

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.

PostgreSQL has many language interfaces, many of which are listed here:

	http://www.postgresql.org/download

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.