postgres

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Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch

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Andres Freund 46c450c0b0 Do all-visible handling in lazy_vacuum_page() outside its critical section. Since `fdf9e21196` lazy_vacuum_page() rechecks the all-visible status of pages in the second pass over the heap. It does so inside a critical section, but both visibilitymap_test() and heap_page_is_all_visible() perform operations that should not happen inside one. The former potentially performs IO and both potentially do memory allocations. To fix, simply move all the all-visible handling outside the critical section. Doing so means that the PD_ALL_VISIBLE on the page won't be included in the full page image of the HEAP2_CLEAN record anymore. But that's fine, the flag will be set by the HEAP2_VISIBLE logged later. Backpatch to 9.3 where the problem was introduced. The bug only came to light due to the assertion added in `4a170ee9` and isn't likely to cause problems in production scenarios. The worst outcome is a avoidable PANIC restart. This also gets rid of the difference in the order of operations between master and standby mentioned in `2a8e1ac5`. Per reports from David Leverton and Keith Fiske in bug #10533.		2014-06-20 11:10:02 +02:00
config	On OS X, link libpython normally, ignoring the "framework" framework.	2014-05-30 18:19:14 -04:00
contrib	Secure Unix-domain sockets of "make check" temporary clusters.	2014-06-14 09:41:17 -04:00
doc	Secure Unix-domain sockets of "make check" temporary clusters.	2014-06-14 09:41:17 -04:00
src	Do all-visible handling in lazy_vacuum_page() outside its critical section.	2014-06-20 11:10:02 +02:00
.gitignore	Add pkg-config files for libpq and ecpg libraries	2013-03-31 16:58:40 -04:00
aclocal.m4	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
configure	Add mkdtemp() to libpgport.	2014-06-14 09:41:17 -04:00
configure.in	Add mkdtemp() to libpgport.	2014-06-14 09:41:17 -04:00
COPYRIGHT	Update copyright for 2014	2014-01-07 16:05:29 -05:00
GNUmakefile.in	Don't generate plain-text HISTORY and src/test/regress/README anymore.	2014-02-10 20:48:12 -05:00
HISTORY	Improve text of stub HISTORY file.	2014-02-12 18:16:27 -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 20:48:12 -05:00
README.git	Don't generate plain-text HISTORY and src/test/regress/README anymore.	2014-02-10 20:48:12 -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/.