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The old minimum values are rather large, making it time consuming to test related behaviour. Additionally the current limits, especially for multixacts, can be problematic in space-constrained systems. 10000000 multixacts can contain a lot of members. Since there's no good reason for the current limits, lower them a good bit. Setting them to 0 would be a bad idea, triggering endless vacuums, so still retain a limit. While at it fix autovacuum_multixact_freeze_max_age to refer to multixact.c instead of varsup.c. Reviewed-By: Robert Haas Discussion: CA+TgmoYmQPHcrc3GSs7vwvrbTkbcGD9Gik=OztbDGGrovkkEzQ@mail.gmail.com Backpatch: back to 9.0 (in parts) |
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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/.