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Tom Lane c59d8dd44d Improve pull_up_subqueries logic so that it doesn't insert unnecessary 
PlaceHolderVar nodes in join quals appearing in or below the lowest
outer join that could null the subquery being pulled up.  This improves
the planner's ability to recognize constant join quals, and probably
helps with detection of common sort keys (equivalence classes) as well.
2009-04-28 21:31:16 +00:00
config Update config.guess and config.sub 2009-04-09 21:33:02 +00:00
contrib Blank line Makefile cleanups. 2009-04-28 17:07:50 +00:00
doc Proofreading adjustments for first two parts of documentation (Tutorial 2009-04-27 16:27:36 +00:00
src Improve pull_up_subqueries logic so that it doesn't insert unnecessary 2009-04-28 21:31:16 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure commit and tag beta1 2009-04-10 00:20:10 +00:00
configure.in commit and tag beta1 2009-04-10 00:20:10 +00:00
COPYRIGHT Update copyright for 2009. 2009-01-01 17:24:05 +00:00
GNUmakefile.in Modify distdir rule to skip .git directory. 2009-01-15 01:53:49 +00:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
README Point to our download URL, rather than listing interface in the README 2008-05-06 22:02:12 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +00:00

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/.