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Tom Lane 427c6b5b98 Avoid assuming that statistics for a parent relation reflect the properties of the union of its child relations as well. This might have been a good idea when it was originally coded, but it's a fatally bad idea when inheritance is being used for partitioning. It's better to have no stats at all than completely misleading stats. Per report from Mark Liberman. The bug arguably exists all the way back, but I've only patched HEAD and 8.1 because we weren't particularly trying to support partitioning before 8.1. Eventually we ought to look at deriving union statistics instead of just punting, but for now the drop kick looks good.		2006-05-02 04:34:18 +00:00
config	Add CVS tag lines to files that were lacking them.	2006-03-11 04:38:42 +00:00
contrib	Fix ltreeparentsel so it actually works ...	2006-04-27 18:24:35 +00:00
doc	Code review for GRANT CONNECT patch. Spell the privilege as CONNECT not	2006-04-30 21:15:33 +00:00
src	Avoid assuming that statistics for a parent relation reflect the properties of	2006-05-02 04:34:18 +00:00
COPYRIGHT	Update copyright for 2006. Update scripts.	2006-03-05 15:59:11 +00:00
GNUmakefile.in	Build src/test/regress/README during tarball making like the other	2006-04-06 18:54:37 +00:00
Makefile	please find attached an alternate submission which addresses open item	2004-10-06 08:50:02 +00:00
README	Update README file.	2006-02-12 19:24:24 +00:00
README.CVS	Some further editorializing on README.CVS.	2004-03-28 06:09:08 +00:00
aclocal.m4	Add new auto-detection of thread flags.	2004-04-23 18:15:55 +00:00
configure	Rearrange some configure.in comments for better readability.	2006-04-29 20:47:31 +00:00
configure.in	Rearrange some configure.in comments for better readability.	2006-04-29 20:47:31 +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 including some of the more
common listed below:

C++ - http://thaiopensource.org/development/libpqxx/
JDBC - http://jdbc.postgresql.org
ODBC - http://odbc.postgresql.org
Perl - http://search.cpan.org/~dbdpg/
PHP - http://www.php.net
Python - http://www.initd.org/
Ruby - http://ruby.scripting.ca/postgres/

Other language binding are available from a variety of contributing
parties.

PostgreSQL also has a great number of procedural languages available,
a short but not complete list is below:

pl/c - Included in PostgreSQL core 
plPgsql - Included in PostgreSQL core - Similar to Oracle PL/sql
plPerl - Included in PostgreSQL core
plPHP - http://projects.commandprompt.com/projects/public/plphp
plPython - Included in PostgreSQL core
plJava - http://gborg.postgresql.org/project/pljava/projdisplay.php
plTcl - Included in PostgreSQL core

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/.