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Tom Lane 95f4e59c32 Remove an unsafe Assert, and explain join_clause_is_movable_into() better. 
join_clause_is_movable_into() is approximate, in the sense that it might
sometimes return "false" when actually it would be valid to push the given
join clause down to the specified level.  This is okay ... but there was
an Assert in get_joinrel_parampathinfo() that's only safe if the answers
are always exact.  Comment out the Assert, and add a bunch of commentary
to clarify what's going on.

Per fuzz testing by Andreas Seltenreich.  The added regression test is
a pretty silly query, but it's based on his crasher example.

Back-patch to 9.2 where the faulty logic was introduced.
2015-07-28 13:20:39 -04:00
config Replace our hacked version of ax_pthread.m4 with latest upstream version. 2015-07-08 20:36:06 +03:00
contrib Some platforms now need contrib/tsm_system_time to be linked with libm. 2015-07-25 16:37:12 -04:00
doc Improve markup for row_security. 2015-07-25 17:46:04 -07:00
src Remove an unsafe Assert, and explain join_clause_is_movable_into() better. 2015-07-28 13:20:39 -04:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Add functions for dealing with PGP armor header lines to pgcrypto. 2014-10-01 16:03:39 +03:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
aclocal.m4 Replace our hacked version of ax_pthread.m4 with latest upstream version. 2015-07-08 20:36:06 +03:00
configure AIX: Test the -qlonglong option before use. 2015-07-17 03:01:14 -04:00
configure.in AIX: Test the -qlonglong option before use. 2015-07-17 03:01:14 -04:00
COPYRIGHT Update copyright for 2015 2015-01-06 11:43:47 -05:00
GNUmakefile.in Fix distclean/maintainer-clean targets to remove top-level tmp_install dir. 2015-05-13 18:48:05 -04:00
HISTORY Improve text of stub HISTORY file. 2014-02-12 18:16:17 -05:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
README.git Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00

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.  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/.