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Fujii Masao c4f99d2029 Add --synchronous option to pg_receivexlog, for more reliable WAL writing. Previously pg_receivexlog flushed WAL data only when WAL file was switched. Then `3dad73e` added -F option to pg_receivexlog so that users could control how frequently sync commands were issued to WAL files. It also allowed users to make pg_receivexlog flush WAL data immediately after writing by specifying 0 in -F option. However feedback messages were not sent back immediately even after a flush location was updated. So even if WAL data was flushed in real time, the server could not see that for a while. This commit removes -F option from and adds --synchronous to pg_receivexlog. If --synchronous is specified, like the standby's wal receiver, pg_receivexlog flushes WAL data as soon as there is WAL data which has not been flushed yet. Then it sends back the feedback message identifying the latest flush location to the server. This option is useful to make pg_receivexlog behave as sync standby by using replication slot, for example. Original patch by Furuya Osamu, heavily rewritten by me. Reviewed by Heikki Linnakangas, Alvaro Herrera and Sawada Masahiko.		2014-11-18 02:32:48 +09:00
config	Add a basic atomic ops API abstracting away platform/architecture details.	2014-09-25 23:49:05 +02:00
contrib	postgres_fdw.h: don't pull in rel.h when relcache.h is enough	2014-11-14 21:48:53 -03:00
doc	Add --synchronous option to pg_receivexlog, for more reliable WAL writing.	2014-11-18 02:32:48 +09:00
src	Add --synchronous option to pg_receivexlog, for more reliable WAL writing.	2014-11-18 02:32:48 +09:00
.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
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
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/.