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Tom Lane 6a0865e4bb In a non-hashed Agg node, reset the "aggcontext" at group boundaries, instead 
of individually pfree'ing pass-by-reference transition values.  This should
be at least as fast as the prior coding, and it has the major advantage of
clearing out any working data an aggregate function may have stored in or
underneath the aggcontext.  This avoids memory leakage when an aggregate
such as array_agg() is used in GROUP BY mode.  Per report from Chris Spotts.

Back-patch to 8.4.  In principle the problem could arise in prior versions,
but since they didn't have array_agg the issue seems not critical.
 		2009-07-23 20:45:27 +00:00
config Make the configure messages rejecting old bison and flex versions include 2009-07-13 05:36:53 +00:00
contrib pg_standby doesn't need to be linked with libpq. Fujii Masao. 2009-07-16 09:59:46 +00:00
doc Update location to download flex for building on Windows. 2009-07-23 17:06:48 +00:00
src In a non-hashed Agg node, reset the "aggcontext" at group boundaries, instead 2009-07-23 20:45:27 +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 Fix the makefiles to fail cleanly if Perl is needed but not present. This 2009-06-23 03:46:00 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Add erand48() to the set of functions supported by our src/port/ library, 2009-07-16 17:43:52 +00:00
configure.in Add erand48() to the set of functions supported by our src/port/ library, 2009-07-16 17:43:52 +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/.