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Tom Lane cddc819e45 Improve implementation of range-contains-element tests. 
Implement these tests directly instead of constructing a singleton range
and then applying range-contains.  This saves a range serialize/deserialize
cycle as well as a couple of redundant bound-comparison steps, and adds
very little code on net.

Remove elem_contained_by_range from the GiST opclass: it doesn't belong
there because there is no way to use it in an index clause (where the
indexed column would have to be on the left).  Its commutator is in the
opclass, and that's what counts.
2011-11-22 17:45:37 -05:00
config Improve detection of Python 3.2 installations 2011-08-18 14:43:16 +03:00
contrib Fix citext upgrade script to update derived copies of pg_type.typcollation. 2011-11-21 11:24:39 -05:00
doc Small markup and wording improvement 2011-11-22 21:14:53 +02:00
src Improve implementation of range-contains-element tests. 2011-11-22 17:45:37 -05:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Remove scandir() requirement in pg_upgrade; instead just use readdir() 2011-11-17 21:59:49 -05:00
configure.in Remove scandir() requirement in pg_upgrade; instead just use readdir() 2011-11-17 21:59:49 -05:00
COPYRIGHT Stamp copyrights for year 2011. 2011-01-01 13:18:15 -05:00
GNUmakefile.in Build src/ before contrib/ in make world 2011-08-24 21:34:49 +03:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -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/.