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Kevin Grittner 93787ce747 Smooth reporting of commit/rollback statistics. 
If a connection committed or rolled back any transactions within a
PGSTAT_STAT_INTERVAL pacing interval without accessing any tables,
the reporting of those statistics would be held up until the
connection closed or until it ended a PGSTAT_STAT_INTERVAL interval
in which it had accessed a table.  This could result in under-
reporting of transactions for an extended period, followed by a
spike in reported transactions.

While this is arguably a bug, the impact is minimal, primarily
affecting, and being affected by, monitoring software.  It might
cause more confusion than benefit to change the existing behavior
in released stable branches, so apply only to master and the 9.4
beta.

Gurjeet Singh, with review and editing by Kevin Grittner,
incorporating suggested changes from Abhijit Menon-Sen and Tom
Lane.
2014-07-02 15:03:57 -05:00
config Silence Bison deprecation warnings 2014-06-03 22:36:35 -04:00
contrib pg_upgrade: preserve database and relation minmxid values 2014-07-02 15:29:38 -04:00
doc Remove use_json_as_text options from json_to_record/json_populate_record. 2014-06-29 13:51:02 -04:00
src Smooth reporting of commit/rollback statistics. 2014-07-02 15:03:57 -05:00
.dir-locals.el Update Emacs configuration 2013-08-13 20:08:44 -04:00
.gitattributes gitattributes: Make syntax compatible with older Git versions 2013-11-12 21:58:46 -05:00
.gitignore Add *.pot to .gitignore 2013-10-19 10:56:52 -04:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Add mkdtemp() to libpgport. 2014-06-14 09:41:16 -04:00
configure.in Add mkdtemp() to libpgport. 2014-06-14 09:41:16 -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

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/.