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December 2011

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MariaDB 5.3.3-rc now available
by MariaDB Announce List 21 Dec '11

21 Dec '11

The MariaDB project would like to announce the availability of MariaDB 5.3.3-rc, the latest addition to our growing lineup of supported software. MariaDB 5.3.3-rc is the first Release Candidate release in the 5.3 series. We hope to follow it up soon with a stable (GA) 5.3 release. == MariaDB 5.3.3-rc Release Notes, Changelog, Downloads =============== The release notes for MariaDB 5.3.3-rc are available from: http://kb.askmonty.org/en/mariadb-533-release-notes A complete changelog for this beta is available from: http://kb.askmonty.org/en/mariadb-533-changelog Sources, binaries and packages can be downloaded from: http://downloads.askmonty.org/mariadb/5.3.3/ Debian and Ubuntu packages (now including Ubuntu 11.10 "Oneiric") are available from our mirrored apt repositories. A sources.list generator can be found at: http://downloads.askmonty.org/mariadb/repositories/ == About MariaDB 5.3.3-rc ============================================= In the MariaDB 5.3.3-rc there are a couple of changes compared to previous 5.3 releases: === Performance: Several optimizer features introduced in MariaDB 5.3 have been thoroughly tested, and switched on by default in 5.3.3. These include: * Subquery materialization (materialization=on) http://kb.askmonty.org/en/non-semi-join-subquery-optimizations * Semi-join optimizations (semijoin=on,firstmatch=on,loosescan=on) http://kb.askmonty.org/en/semi-join-subquery-optimizations * Derived table optimization (derived_merge=on,derived_with_keys=on) (Documentation is being worked on) * Index Condition Pushdown (index_condition_pushdown=on) http://kb.askmonty.org/en/index-condition-pushdown * Nested loop join will use its Block-based variant more aggressively http://kb.askmonty.org/en/block-based-join-algorithms * Block-based join for OUTER JOINs (outer_join_with_cache=on) * Block-based join for semi-joins (semijoin_with_cache=on) * Linked join buffers (more aggressive buffering of multi-way joins) (@@join_cache_level==2) Also, DISTINCT and GROUP BY clauses are now removed from subqueries when possible. This allows for more efficient query plans. (backported from MySQL 5.6) === Usability: EXPLAIN output has been improved in MariaDB 5.3.3 to be easier to understand: * The select_type column now shows MATERIALIZED for subqueries that are executed with Materialization (it used to show SUBQUERY, which made it hard to distinguish materialized subqueries from other kinds subqueries). * For a Duplicate Elimination strategy, Start temporary is now shown at the first table from the subquery. See also: http://kb.askmonty.org/en/explain === GIS Operations: GIS precise operations were added in MariaDB 5.3.3 (Documentation for this is still being worked on). == About MariaDB 5.3 ================================================== The MariaDB 5.3 series introduces many new features, includes MariaDB 5.2, and is based on MariaDB 5.1 & MySQL 5.1. Some highlights of new features in MariaDB 5.3 include: - subquery optimizations that finally make subqueries usable - many optimizer changes, including Classic Hash Join, Batched Key Access, a new implementation of Multi-Range-Read optimizations as well as Index Condition Pushdown - NoSQL-style interfaces via the HandlerSocket plugin as well as dynamic columns - group commit in XtraDB when the binary log is enabled - Microsoft Windows performance improvements These are just some of the highlights, and for a more complete list of changes, please read the What is MariaDB 5.3 page: http://kb.askmonty.org/en/what-is-mariadb-53 == User Feedback plugin =============================================== MariaDB 5.3 includes a User Feedback plugin. This plugin is disabled by default. If enabled, it submits anonymous basic MariaDB usage information. This information will be used by the developers to track trends in MariaDB usage to better guide development efforts. If you would like to help make MariaDB better, please add --plugin-load=feedback.so to your my.cnf file! On Windows, add "feedback=ON" to your my.ini file, or click the checkbox during the installation of the MSI package. See http://kb.askmonty.org/en/user-feedback-plugin for more information. == MariaDB Crash Course book ========================================== We would also like to mention the book "MariaDB Crash Course", by Ben Forta. This book -- for beginner to intermediate level users -- will get you up and running with MariaDB, even if you've never used a database before. More information is available at: http://forta.com/books/0321799941/ == Quality ============================================================ The project always strives for quality, but in reality, nothing is perfect. Please take some time to report any issues you encounter at: https://bugs.launchpad.net/maria We hope you enjoy MariaDB 5.3.3-rc! -- Daniel Bartholomew MariaDB - http://mariadb.org Monty Program - http://montyprogram.com AskMonty Knowledgebase - http://kb.askmonty.org

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MariaDB 5.2.10 and 5.1.60 Released
by MariaDB Announce List 06 Dec '11

06 Dec '11

This email is longer than usual, but that is because we are announcing today the availability of both MariaDB 5.2.10 and 5.1.60, the latest additions to our growing lineup of supported software. MariaDB 5.2.10 and 5.1.60 are primarily bug-fix updates to the previous 5.2.9 and 5.1.55 releases, respectively. == About MariaDB 5.2 MariaDB 5.2 contains features that didn't have time to go into MariaDB 5.1. For all practical purposes it's a drop in replacement for MariaDB 5.1 (and thus MySQL 5.1). The new features in 5.2 are quite isolated and as most have been in use by members in the MySQL community for a long time. Current versions of MariaDB 5.2 are stable. This is equivalent to a MySQL GA release. For a list of the various changes in the MariaDB 5.2 series, please see: * http://kb.askmonty.org/en/what-is-mariadb-52 === PAM authentication plugin in MariaDB 5.2.10 One change in MariaDB 5.2.10 which we want to make you aware of is the inclusion of a new open source PAM authentication plugin. See http://kb.askmonty.org/en/pam-authentication-plugin for more information. === Windows Binaries delayed Due to some issues with our Windows build server, the Windows binaries for 5.2.10 have been delayed. They should be released soon. === MariaDB 5.2.10 Release Notes, Changelog, Downloads See the following pages for more information on MariaDB 5.2.10 and to download it: * http://kb.askmonty.org/en/mariadb-5210-release-notes * http://kb.askmonty.org/en/mariadb-5210-changelog * http://downloads.askmonty.org/mariadb/5.2.10/ == About MariaDB 5.1 MariaDB 5.1 is a binary drop in replacement of MySQL 5.1, but with performance like MySQL 5.5 (thanks to XtraDB), fewer bugs, and more features. Thanks to the extended and improved mysql_upgrade program it's also easier to upgrade from MySQL 5.0 to MariaDB 5.1 than to MySQL 5.1. MariaDB 5.1 is based on MySQL 5.1. In particular, MariaDB 5.1.60 is based on MySQL 5.1.60, with many improvements. For a list of the various improvements in the MariaDB 5.1 series, please see: * http://kb.askmonty.org/en/what-is-mariadb-51 === MariaDB 5.1.60 Release Notes, Changelog, Downloads See the following pages for more information on MariaDB 5.1.60 and to download it: * http://kb.askmonty.org/en/mariadb-5160-release-notes * http://kb.askmonty.org/en/mariadb-5160-changelog * http://downloads.askmonty.org/mariadb/5.1.60/ == Debian & Ubuntu Software Repositories Debian and Ubuntu packages are available from our mirrored apt repositories. A sources.list generator can be found at: http://downloads.askmonty.org/mariadb/repositories/ == MariaDB Crash Course book We would also like to mention the book "MariaDB Crash Course", by Ben Forta. This book -- for beginner to intermediate level users -- will get you up and running with MariaDB, even if you've never used a database before. More information is available at: http://forta.com/books/0321799941/ == Reporting issues The project always strives for quality, and we know that not everything may be perfect. Please take some time to report any issues you may encounter at: https://bugs.launchpad.net/maria Enjoy MariaDB 5.2.10 and 5.1.60! -- Daniel Bartholomew MariaDB - http://mariadb.org Monty Program - http://montyprogram.com AskMonty Knowledgebase - http://kb.askmonty.org

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