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Tom Lane 49340037ee Reduce idle power consumption of stats collector process. 
Latch-ify the stats collector, so that it does not need an arbitrary wakeup
cycle to check for postmaster death.  The incremental savings in idle power
is pretty marginal, since we only had it waking every two seconds; but I
believe that this patch may also improve the collector's performance under
load, by reducing the number of kernel calls made per message when messages
are arriving constantly (we now avoid a select/poll call except when we
need to sleep).  The change also reduces the time needed for a normal
database shutdown on platforms where signals don't interrupt select().
2012-05-08 21:26:46 -04:00
config Update config.guess and config.sub 2012-05-08 20:46:13 +03:00
contrib Tweak contrib --help output to match common style 2012-05-08 21:55:05 +03:00
doc psql: Add variable to control keyword case in tab completion 2012-05-08 21:06:08 +03:00
src Reduce idle power consumption of stats collector process. 2012-05-08 21:26:46 -04:00
.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 Remove strdup, strtol, strtoul from libpgport 2012-05-07 23:10:28 +03:00
configure.in Remove strdup, strtol, strtoul from libpgport 2012-05-07 23:10:28 +03:00
COPYRIGHT Update copyright notices for year 2012. 2012-01-01 18:01:58 -05:00
GNUmakefile.in Add isolation test to check-world and installcheck-world 2012-03-05 20:19:20 +02:00
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/.