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Tom Lane e549722a8b Get rid of the rather fuzzily defined FlattenedSubLink node type in favor of 
making pull_up_sublinks() construct a full-blown JoinExpr tree representation
of IN/EXISTS SubLinks that it is able to convert to semi or anti joins.
This makes pull_up_sublinks() a shade more complex, but the gain in semantic
clarity is worth it.  I still have more to do in this area to address the
previously-discussed problems, but this commit in itself fixes at least one
bug in HEAD, as shown by added regression test case.
2009-02-25 03:30:38 +00:00
config allow alternative names for tclsh used on Windows 2009-02-03 01:24:57 +00:00
contrib Fix bug with multiple evaluation of tsearch2 compatibility trigger, trigger 2009-01-28 18:31:32 +00:00
doc Don't append epoch to log_filename if no format specifier is given. 2009-02-24 12:09:09 +00:00
src Get rid of the rather fuzzily defined FlattenedSubLink node type in favor of 2009-02-25 03:30:38 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure do not use unsetenv.c on mingw 2009-02-12 15:12:47 +00:00
configure.in do not use unsetenv.c on mingw 2009-02-12 15:12:47 +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 Some further editorializing on README.CVS. 2004-03-28 06:09:08 +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/.