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Noah Misch 213c7df033 Impose a full barrier in generic-xlc.h atomics functions. 
pg_atomic_compare_exchange_*_impl() were providing only the semantics of
an acquire barrier.  Buildfarm members hornet and mandrill revealed this
deficit beginning with commit 008608b9d5.
While we have no report of symptoms in 9.5, we can't rule out the
possibility of certain compilers, hardware, or extension code relying on
these functions' specified barrier semantics.  Back-patch to 9.5, where
commit b64d92f1a5 introduced atomics.

Reviewed by Andres Freund.
2016-04-26 21:53:58 -04:00
config Copyedit comments and documentation. 2016-04-01 21:53:10 -04:00
contrib Convert contrib/seg's bool-returning SQL functions to V1 call convention. 2016-04-22 11:54:23 -04:00
doc Fix tsearch docs 2016-04-26 20:26:26 +03:00
src Impose a full barrier in generic-xlc.h atomics functions. 2016-04-26 21:53:58 -04:00
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configure Add BSD authentication method. 2016-04-08 13:52:06 -04:00
configure.in Add BSD authentication method. 2016-04-08 13:52:06 -04:00
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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/.