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6537a48c55
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Alvaro Herrera 6537a48c55 Avoid hot standby cancels from VAC FREEZE 
VACUUM FREEZE generated false cancelations of standby queries on an
otherwise idle master. Caused by an off-by-one error on cutoff_xid
which goes back to original commit.

Analysis and report by Marco Nenciarini

Bug fix by Simon Riggs

This is a correct backpatch of commit 66fbcb0d2e to branches 9.1 through
9.4.  That commit was backpatched to 9.0 originally, but it was
immediately reverted in 9.0-9.4 because it didn't compile.
2016-05-25 19:39:49 -04:00
config Fix configure's incorrect version tests for flex and perl. 2016-05-02 11:18:11 -04:00
contrib Ensure plan stability in contrib/btree_gist regression test. 2016-05-12 20:04:41 -04:00
doc Further improve documentation about --quote-all-identifiers switch. 2016-05-20 15:52:16 -04:00
src Avoid hot standby cancels from VAC FREEZE 2016-05-25 19:39:49 -04:00
.gitignore
aclocal.m4
configure Stamp 9.3.13. 2016-05-09 16:53:56 -04:00
configure.in Stamp 9.3.13. 2016-05-09 16:53:56 -04:00
COPYRIGHT Update copyright for 2016 2016-01-02 13:33:39 -05:00
GNUmakefile.in
HISTORY Improve text of stub HISTORY file. 2014-02-12 18:16:27 -05:00
Makefile
README
README.git

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/.