upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-02-18 01:59:53 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions
Base de données relationnelle
43989 commits 38 branches 674 tags 839 MiB
C 84.9%
PLpgSQL 6.1%
Perl 4.7%
Yacc 1.2%
Meson 0.7%
Other 2.2%
Find a file
Tom Lane 370b28ccd4 Fix tuple_data_split() to not open a relation without any lock. 
contrib/pageinspect's tuple_data_split() function thought it could get
away with opening the referenced relation with NoLock.  In practice
there's no guarantee that the current session holds any lock on that
rel (even if we just read a page from it), so that this is unsafe.

Switch to using AccessShareLock.  Also, postpone closing the relation,
so that we needn't copy its tupdesc.  Also, fix unsafe use of
att_isnull() for attributes past the end of the tuple.

Per testing with a patch that complains if we open a relation without
holding any lock on it.  I don't plan to back-patch that patch, but we
should close the holes it identifies in all supported branches.

Discussion: https://postgr.es/m/2038.1538335244@sss.pgh.pa.us
2018-10-01 11:51:07 -04:00
config Fix detection of the result type of strerror_r(). 2018-09-30 16:24:56 -04:00
contrib Fix tuple_data_split() to not open a relation without any lock. 2018-10-01 11:51:07 -04:00
doc docs: remove use of escape strings and use bytea hex output 2018-09-21 19:55:07 -04:00
src Fix ALTER COLUMN TYPE to not open a relation without any lock. 2018-10-01 11:39:14 -04:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.gitignore Allow .so minor version numbers above 9 in .gitignore. 2016-08-15 17:35:35 -04:00
aclocal.m4 Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
configure Fix detection of the result type of strerror_r(). 2018-09-30 16:24:56 -04:00
configure.in Make some fixes to allow building Postgres on macOS 10.14 ("Mojave"). 2018-09-25 13:23:29 -04:00
COPYRIGHT Update copyright for 2018 2018-01-02 23:30:12 -05:00
GNUmakefile.in Have "make coverage" recurse into contrib as well 2016-09-05 18:44:36 -03:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:31 -08:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00

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:

	https://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
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.