b8b69d8990
This reverts commit 18fb9d8d21a28caddb72c7ffbdd7b96d52ff9724. Per discussion, it does not seem like a good idea to allow committed changes to go un-checkpointed indefinitely, as could happen in a low-traffic server; that makes us entirely reliant on the WAL stream with no redundancy that might aid data recovery in case of disk failure. This re-introduces the original problem of hot-standby setups generating a small continuing stream of WAL traffic even when idle, but there are other ways to address that without compromising crash recovery, so we'll revisit that issue in a future release cycle.
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/.