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Tom Lane eb865dbb1b Improve handling of INT_MIN / -1 and related cases. 
Some platforms throw an exception for this division, rather than returning
a necessarily-overflowed result.  Since we were testing for overflow after
the fact, an exception isn't nice.  We can avoid the problem by treating
division by -1 as negation.

Add some regression tests so that we'll find out if any compilers try to
optimize away the overflow check conditions.

Back-patch of commit 1f7cb5c309.

Per discussion with Xi Wang, though this is different from the patch he
submitted.
2012-11-19 21:21:48 -05:00
config Don't reject threaded Python on FreeBSD. 2012-02-20 16:21:41 -05:00
contrib Fix line end mishandling in pg_upgrade on Windows. 2012-09-05 17:49:30 -04:00
doc XSLT stylesheet: Add slash to directory name 2012-11-08 23:59:22 -05:00
src Improve handling of INT_MIN / -1 and related cases. 2012-11-19 21:21:48 -05:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:06 +02:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Stamp 9.0.10. 2012-09-19 17:53:08 -04:00
configure.in Stamp 9.0.10. 2012-09-19 17:53:08 -04:00
COPYRIGHT Update copyright for the year 2010. 2010-01-02 16:58:17 +00:00
GNUmakefile.in Back-patch replacement of README.CVS with README.git. 2010-09-21 14:42:58 -04:00
Makefile Add new make targets "world", "install-world" and "installcheck-world" to build, install and check just about everything. 2010-01-28 23:59:52 +00:00
README Point to our download URL, rather than listing interface in the README 2008-05-06 22:02:12 +00:00
README.git Back-patch replacement of README.CVS with README.git. 2010-09-21 14:42:58 -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.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  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/.