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Heikki Linnakangas 42c63cafb2 Fix bugs in SSI tuple locking. 
1. In heap_hot_search_buffer(), the PredicateLockTuple() call is passed
wrong offset number. heapTuple->t_self is set to the tid of the first
tuple in the chain that's visited, not the one actually being read.

2. CheckForSerializableConflictIn() uses the tuple's t_ctid field
instead of t_self to check for exiting predicate locks on the tuple. If
the tuple was updated, but the updater rolled back, t_ctid points to the
aborted dead tuple.

Reported by Hannu Krosing. Backpatch to 9.1.
2013-10-08 00:14:15 +03:00
config Don't reject threaded Python on FreeBSD. 2012-02-20 16:21:35 -05:00
contrib Fix contrib/cube and contrib/seg to build with bison 3.0. 2013-07-29 10:42:47 -04:00
doc Document support for VPATH builds of extensions. 2013-10-06 23:07:28 -04:00
src Fix bugs in SSI tuple locking. 2013-10-08 00:14:15 +03:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Disable -faggressive-loop-optimizations in gcc 4.8+ for pre-9.2 branches. 2013-08-21 18:31:48 -04:00
configure.in Disable -faggressive-loop-optimizations in gcc 4.8+ for pre-9.2 branches. 2013-08-21 18:31:48 -04:00
COPYRIGHT Update copyrights for 2013 2013-01-01 17:15:00 -05:00
GNUmakefile.in Build src/ before contrib/ in make world 2011-08-24 21:36:53 +03:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -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:

	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.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  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/.