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Tom Lane 66c036b4f1 Fix use-after-free bug with event triggers and ALTER TABLE. 
EventTriggerAlterTableEnd neglected to make sure that it built its
output list in the right context.  In simple cases this was masked
because the function is called in PortalContext which will be
sufficiently long-lived anyway; but that doesn't make it not a bug.
Commit ced138e8c fixed this in HEAD and v13, but mistakenly chose
not to back-patch further.  Back-patch the same code change all
the way (I didn't bother with the test case though, as it would
prove nothing in pre-v13 branches).

Per report from Arseny Sher.
Original fix by Jehan-Guillaume de Rorthais.

Discussion: https://postgr.es/m/877drcyprb.fsf@ars-thinkpad
Discussion: https://postgr.es/m/20200902193715.6e0269d4@firost
2020-10-27 15:37:13 -04:00
config configure: Update python search order 2019-01-13 10:24:21 +01:00
contrib Fix potential memory leak in pgcrypto 2020-10-19 09:38:01 +09:00
doc Accept relations of any kind in LOCK TABLE 2020-10-27 13:49:19 -03:00
src Fix use-after-free bug with event triggers and ALTER TABLE. 2020-10-27 15:37:13 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:36 -08:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
configure Stamp 11.9. 2020-08-10 17:17:40 -04:00
configure.in Stamp 11.9. 2020-08-10 17:17:40 -04:00
COPYRIGHT Update copyrights for 2020 2020-01-01 12:21:44 -05:00
GNUmakefile.in Make install-tests target work with vpath builds 2020-05-31 18:35:21 -04:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:40:20 +12:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -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:

	https://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
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.