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Tom Lane 0daeba0e92 Be more paranoid in ruleutils.c's get_variable(). 
We were merely Assert'ing that the Var matched the RTE it's supposedly
from.  But if the user passes incorrect information to pg_get_expr(),
the RTE might in fact not match; this led either to Assert failures
or core dumps, as reported by Chris Hanks in bug #14220.  To fix, just
convert the Asserts to test-and-elog.  Adjust an existing test-and-elog
elsewhere in the same function to be consistent in wording.

(If we really felt these were user-facing errors, we might promote them to
ereport's; but I can't convince myself that they're worth translating.)

Back-patch to 9.3; the problematic code doesn't exist before that, and
a quick check says that 9.2 doesn't crash on such cases.

Michael Paquier and Thomas Munro

Report: <20160629224349.1407.32667@wrigleys.postgresql.org>
2016-07-01 11:40:33 -04:00
config Update config.guess and config.sub 2016-05-06 14:02:44 -04:00
contrib postgres_fdw: Fix cache lookup failure while creating error context. 2016-07-01 11:29:25 -04:00
doc Add conninfo to pg_stat_wal_receiver 2016-06-29 16:57:17 -04:00
src Be more paranoid in ruleutils.c's get_variable(). 2016-07-01 11:40:33 -04:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Fix whitespace and remove obsolete gitattributes entry 2016-03-13 16:03:13 -04:00
.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 Stamp 9.6beta2. 2016-06-20 16:23:47 -04:00
configure.in Stamp 9.6beta2. 2016-06-20 16:23:47 -04:00
COPYRIGHT Update copyright for 2016 2016-01-02 13:33:40 -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/.