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Tom Lane f27cbcdc6b Fix erroneous range-union logic for varlena types in contrib/btree_gist. 
gbt_var_bin_union() failed to do the right thing when the existing range
needed to be widened at both ends rather than just one end.  This could
result in an invalid index in which keys that are present would not be
found by searches, because the searches would not think they need to
descend to the relevant leaf pages.  This error affected all the varlena
datatypes supported by btree_gist (text, bytea, bit, numeric).

Per investigation of a trouble report from Tomas Vondra.  (There is also
an issue in gbt_var_penalty(), but that should only result in inefficiency
not wrong answers.  I'm committing this separately so that we have a git
state in which it can be tested that bad penalty results don't produce
invalid indexes.)  Back-patch to all supported branches.
2013-02-07 18:22:42 -05:00
config Don't reject threaded Python on FreeBSD. 2012-02-20 16:21:46 -05:00
contrib Fix erroneous range-union logic for varlena types in contrib/btree_gist. 2013-02-07 18:22:42 -05:00
doc Stamp 8.4.16. 2013-02-04 16:28:55 -05:00
src Repair bugs in GiST page splitting code for multi-column indexes. 2013-02-07 17:44:26 -05:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:08 +02:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Stamp 8.4.16. 2013-02-04 16:28:55 -05:00
configure.in Stamp 8.4.16. 2013-02-04 16:28:55 -05:00
COPYRIGHT Update copyrights for 2013 2013-01-01 17:14:59 -05:00
GNUmakefile.in Back-patch creation of tar.bz2 tarball during "make dist". 2011-07-03 16:40:28 -04:00
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.git Back-patch replacement of README.CVS with README.git. 2010-09-21 14:43:06 -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/.