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Robert Haas 0709b7ee72 Change the spinlock primitives to function as compiler barriers. 
Previously, they functioned as barriers against CPU reordering but not
compiler reordering, an odd API that required extensive use of volatile
everywhere that spinlocks are used.  That's error-prone and has negative
implications for performance, so change it.

In theory, this makes it safe to remove many of the uses of volatile
that we currently have in our code base, but we may find that there are
some bugs in this effort when we do.  In the long run, though, this
should make for much more maintainable code.

Patch by me.  Review by Andres Freund.
 		2014-09-09 17:48:50 -04:00
config Add #define INT64_MODIFIER for the printf length modifier for 64-bit ints. 2014-08-21 09:56:44 +03:00
contrib doc: Reflect renaming of Mac OS X to OS X 2014-09-09 13:56:29 -04:00
doc Add width_bucket(anyelement, anyarray). 2014-09-09 15:34:14 -04:00
src Change the spinlock primitives to function as compiler barriers. 2014-09-09 17:48:50 -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 00:12:10 -04:00
.gitignore Add *.pot to .gitignore 2013-10-19 10:56:52 -04:00
COPYRIGHT Update copyright for 2014 2014-01-07 16:05:30 -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
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Always use our getaddrinfo.c on Windows. 2014-08-28 20:36:27 -04:00
configure.in Always use our getaddrinfo.c on Windows. 2014-08-28 20:36:27 -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:

	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/.