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Tom Lane f7797747fc Avoid ecpglib core dump with out-of-order operations. 
If an application executed operations like EXEC SQL PREPARE
without having first established a database connection, it could
get a core dump instead of the expected clean failure.  This
occurred because we did "pthread_getspecific(actual_connection_key)"
without ever having initialized the TSD key actual_connection_key.
The results of that are probably platform-specific, but at least
on Linux it often leads to a crash.

To fix, add calls to ecpg_pthreads_init() in the code paths that
might use actual_connection_key uninitialized.  It's harmless
(and hopefully inexpensive) to do that more than once.

Per bug #17514 from Okano Naoki.  The problem's ancient, so
back-patch to all supported branches.

Discussion: https://postgr.es/m/17514-edd4fad547c5692c@postgresql.org
 		2022-06-14 18:16:46 -04:00
config Replace use of deprecated Python module distutils.sysconfig, take 2. 2022-02-01 19:03:41 -05:00
contrib Silence compiler warnings from some older compilers. 2022-06-01 17:21:45 -04:00
doc Doc: clarify the default collation behavior of domains. 2022-06-14 17:47:09 -04:00
src Avoid ecpglib core dump with out-of-order operations. 2022-06-14 18:16:46 -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
COPYRIGHT Update copyright for 2022 2022-01-07 19:04:56 -05:00
GNUmakefile.in Add new make targets world-bin and install-world-bin 2021-07-01 14:52:40 -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
aclocal.m4 Probe $PROVE not $PERL while checking for modules needed by TAP tests. 2021-11-22 12:54:52 -05:00
configure configure: don't probe for libldap_r if libldap is 2.5 or newer. 2022-05-10 18:42:02 -04:00
configure.in configure: don't probe for libldap_r if libldap is 2.5 or newer. 2022-05-10 18:42:02 -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/.