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Noah Misch 3cd1ba147e Fix comments about WAL rule "write xlog before data" versus pg_multixact. 
Recovery does not achieve its goal of zeroing all pg_multixact entries
whose accompanying WAL records never reached disk.  Remove that claim
and justify its expendability.  Detail the need for TrimMultiXact(),
which has little in common with the TrimCLOG() rationale.  Merge two
tightly-related comments.  Stop presenting pg_multixact as specific to
heap_lock_tuple(); PostgreSQL 9.3 extended its use to heap_update().

Noticed while investigating a report from Andres Freund.
2016-01-01 01:46:46 -05:00
config Install our "missing" script where PGXS builds can find it. 2015-12-11 16:15:05 -05:00
contrib Add a comment noting that FDWs don't have to implement EXCEPT or LIMIT TO. 2015-12-31 17:59:10 -05:00
doc doc: Remove redundant duplicate URLs from ulink elements 2015-12-31 22:26:57 -05:00
src Fix comments about WAL rule "write xlog before data" versus pg_multixact. 2016-01-01 01:46:46 -05:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Add functions for dealing with PGP armor header lines to pgcrypto. 2014-10-01 16:03:39 +03:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
aclocal.m4 Replace our hacked version of ax_pthread.m4 with latest upstream version. 2015-07-08 20:36:06 +03:00
configure Cope with Readline's failure to track SIGWINCH events outside of input. 2015-12-16 16:59:35 -05:00
configure.in Cope with Readline's failure to track SIGWINCH events outside of input. 2015-12-16 16:59:35 -05:00
COPYRIGHT Update copyright for 2015 2015-01-06 11:43:47 -05:00
GNUmakefile.in Fix distclean/maintainer-clean targets to remove top-level tmp_install dir. 2015-05-13 18:48:05 -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/.