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Andres Freund 89fd41b390 Fix and improve cache invalidation logic for logical decoding. There are basically three situations in which logical decoding needs to perform cache invalidation. During/After replaying a transaction with catalog changes, when skipping a uninteresting transaction that performed catalog changes and when erroring out while replaying a transaction. Unfortunately these three cases were all done slightly differently - partially because `8de3e410fa`, which greatly simplifies matters, got committed in the midst of the development of logical decoding. The actually problematic case was when logical decoding skipped transaction commits (and thus processed invalidations). When used via the SQL interface cache invalidation could access the catalog - bad, because we didn't set up enough state to allow that correctly. It'd not be hard to setup sufficient state, but the simpler solution is to always perform cache invalidation outside a valid transaction. Also make the different cache invalidation cases look as similar as possible, to ease code review. This fixes the assertion failure reported by Antonin Houska in 53EE02D9.7040702@gmail.com. The presented testcase has been expanded into a regression test. Backpatch to 9.4, where logical decoding was introduced.		2014-11-13 20:34:31 +01:00
config	Add a basic atomic ops API abstracting away platform/architecture details.	2014-09-25 23:49:05 +02:00
contrib	Fix and improve cache invalidation logic for logical decoding.	2014-11-13 20:34:31 +01:00
doc	Tweak row-level locking documentation	2014-11-13 14:45:55 -03:00
src	Fix and improve cache invalidation logic for logical decoding.	2014-11-13 20:34:31 +01:00
.dir-locals.el	Update Emacs configuration	2013-08-13 20:08:44 -04:00
.gitattributes	Add functions for dealing with PGP armor header lines to pgcrypto.	2014-10-01 16:03:39 +03:00
.gitignore	Add *.pot to .gitignore	2013-10-19 10:56:52 -04:00
COPYRIGHT	Update copyright for 2014	2014-01-07 16:05:30 -05:00
GNUmakefile.in	Add TAP tests for client programs	2014-04-14 21:33:46 -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
aclocal.m4	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
configure	Add configure --enable-tap-tests option	2014-11-02 09:17:26 -05:00
configure.in	Add configure --enable-tap-tests option	2014-11-02 09:17:26 -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/.