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Tom Lane f4ceb7aa56 Fix regex match failures for backrefs combined with non-greedy quantifiers. 
An ancient logic error in cfindloop() could cause the regex engine to fail
to find matches that begin later than the start of the string.  This
function is only used when the regex pattern contains a back reference,
and so far as we can tell the error is only reachable if the pattern is
non-greedy (i.e. its first quantifier uses the ? modifier).  Furthermore,
the actual match must begin after some potential match that satisfies the
DFA but then fails the back-reference's match test.

Reported and fixed by Jeevan Chalke, with cosmetic adjustments by me.
2013-07-18 21:22:53 -04:00
config Don't reject threaded Python on FreeBSD. 2012-02-20 16:21:35 -05:00
contrib Fix pgp_pub_decrypt() so it works for secret keys with passwords. 2013-05-10 13:06:57 -04:00
doc Fixed incorrect description of EXEC SQL VAR command. 2013-07-12 15:03:52 +02:00
src Fix regex match failures for backrefs combined with non-greedy quantifiers. 2013-07-18 21:22:53 -04:00
.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 Stamp 9.1.9. 2013-04-01 14:23:05 -04:00
configure.in Stamp 9.1.9. 2013-04-01 14:23:05 -04:00
COPYRIGHT Update copyrights for 2013 2013-01-01 17:15:00 -05:00
GNUmakefile.in Build src/ before contrib/ in make world 2011-08-24 21:36:53 +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/.