News - 2.x

Release 2.10 - 2012/12/29

Improvements

  • Supported to use ENABLE KEYS/DISABLE KEYS against table whose charset is different from system charset. [Reported by @kokoronavi]
  • Improved to show the value of duplicated key on error message.
  • Supported MySQL 5.6.9-rc. [#1547] [#1548] [Reported by wing]
  • [storage] Supported to use GROUP BY with index. This change improves search speed against GROUP BY.
  • Dropped Ubuntu 11.04 (Natty Narwhal) support.

Fixes

  • [rpm][centos] Fixed to use MySQL 5.1.66-2 on CentOS 6. [Reported by @wakisuke.ua]
  • Fixed a bug that MATCH AGAINST with INNER JOIN syntax causes an error. [Reported by ooshiro]

Thanks

  • @kokoronavi
  • @wakisuke.ua
  • wing
  • ooshiro

Release 2.09 - 2012/11/29

Caution

This release has backward incompatible changes against TIMESTAMP value and primary indexed char(N).

TIMESTAMP value is changed to store as UTC timezone. If you have any table that uses TIMESTAMP column with no UTC timezone, please recreate (dump and restore) database.

If you have any table that uses char(N) as primary key, please recreate index.

Here is a procedure how to recreate database or recreate index.

Dump a database that uses mroonga:

% mysqldump MY_MROONGA_DATABASE > database-mroonga.dump

Restore a database by modified dump file:

% mysql -u root MY_MROONGA_DATABASE < database-mroonga.dump

Recreate a index:

mysql> ALTER TABLE table_name DROP PRIMARY KEY;
mysql> ALTER TABLE table_name ADD PRIMARY KEY(column_name);

Improvements

  • [rpm][centos] Supported MySQL 5.5.28 on CentOS 5.
  • [rpm][centos] Supported MySQL 5.1.61 on CentOS 6.
  • [wrapper mode] Supported last_insert_id() [#1540] [Reported by @soundkitchen]

Fixes

  • [mysql51] Fixed crash bug by checking existence of utf8mb4. MySQL 5.1 doesn't have utf8mb4. [groonga-dev,01069] [Reported by wakisuke]
  • [storage mode] Fixed impossible deleting problem that matched records. [#1533] [Reported by @HANZUBON]
  • Fixed a bug that primary indexed char(N) can't be searched. This bug affects if any value of char(N) has M-length (M < N) string or it has one more spaces at the last and require index recreation.
  • Fixed a bug that content after NULL character is ignored for char(N)
  • Fixed to store TIMESTAMP value as UTC timezone. This is backward incompatible change.

Thanks

  • @soundkitchen
  • wakisuke
  • @HANZUBON

Release 2.08 - 2012/10/29

Caution

This release has a backward incompatible change against multiple column index. If you have any tables that uses any multiple comlumn indexes against VARCHAR or CHAR, please recreate those indexes by ALTER TABLE DISABLE KEYS and ALTER TABLE ENBALE KEYS:

mysql> ALTER TABLE table_name DISABLE KEYS;
mysql> ALTER TABLE table_name ENABLE KEYS;

Improvements

  • [storage mode] Supported INFORMATION_SCHEMA.TABLES.DATA_LENGTH. [Suggested by @9m]
  • Supported utf8mb4. [groonga-dev,01049] [Reported by warp kawada]
  • Supported Ubuntu 12.10 (Quantal Quetzal)
  • [rpm][fedora] Supported MySQL 5.5.28.

Fixes

  • [storage mode] Fixed unique judge problem of multiple column unique index with date column. [groonga-dev,01041] [#1495] [Reported by jd fonc]
  • Fixed a bug that WHERE index < XXX ORDER BY DESC doesn't sort by descending. [Reported by @taro252]
  • [rpm] Fixed missing DROP FUNCTION mroonga_snippet. [Reported by @tokuhy]
  • Fixed range search by multi column index by int.
  • [doc] Fixed wrong command line operation during build process. [groonga-dev,01061] [Reported by Kazuhiro Isobe]

Thanks

  • @9m
  • warp kawada
  • jd fonc
  • @taro252
  • @tokuhy
  • Kazuhiro Isobe

Release 2.07 - 2012/09/29

Improvements

  • [deb] Enabled AppArmor configuration for MeCab. [Reported by @Qurage]
  • [storage mode][experimental] Added mroonga_snippet() function. [#1442]

Fixes

  • [rpm] Fixed groonga_required_version. [groonga-dev,01033] [Reported by wing]
  • Fixed datetime out of range problems. [groonga-dev,01035] [#1476] [Reported by Nakatani Munetaka]

Thanks

  • @Qurage
  • wing
  • Nakatani Munetaka

Release 2.06 - 2012/08/29

Caution

This release has a backward compatibility about a database. But this release depends on new functionality introduced at groonga 2.0.6. Note that you must use mroonga 2.06 with groonga 2.0.6.

Improvements

  • Supported "-WORD" syntax in BOOLEAN MODE.

Fixes

  • Fixed nallowing records by "order by" clause with fulltext condition. [groonga-dev,00977] [#1422] [Reported by Nakatani Munetaka]
  • Removed needless build flags. [#1453] [Reported by @nabebeb]
  • [rpm][centos] Fixed missing mysql-devel BuildRequires. [groonga-dev,01009] [Reported by wing]

Thanks

  • @nabebeb
  • wing
  • Nakatani Munetaka

Release 2.05 - 2012/07/29

Caution

This release has a backward incompatible change against SET column and ENUM. If you use SET column or ENUM that has the number of elements < 256 in Storage mode, please recreate (dump and restore) database.

Here is upgrade sequence.

Dump a database that uses mroonga:

% mysqldump MY_MROONGA_DATABASE > database-mroonga.dump

Drop the existing database:

% mysql -u root -e 'DROP DATABASE MY_MROONGA_DATABASE'

You must upgrade to "mroonga" storage engine. Use apt-get on Debian GNU/Linux or Ubuntu and yum on CentOS or Fedora.

apt-get:

% sudo apt-get install -y mysql-server-mroonga

yum (upgrade from mroonga release prior to v2.02):

% sudo yum remove -y mysql-mroonga
% sudo yum install -y mysql-mroonga

yum (upgrade from mroonga release v2.03 or later):

% sudo yum install -y mysql-mroonga

Caution

Don't forget to run yum remove before yum install if you upgrade mroonga prior to v2.02 release. If you forget to run yum remove, we will break a MySQL's system table.

Recreate a database:

% mysql -u root -e 'CREATE DATABASE MY_MROONGA_DATABASE'

Restore a database by modified dump file:

% mysql -u root MY_MROONGA_DATABASE < database-mroonga.dump

Now, we can use mroonga 2.05.

Improvements

  • [storage mode] Supported index for SET column.
  • [rpm] Supported MySQL 5.5.25a.
  • Supported Fedora 17.
  • Dropped Fedora 16 support.
  • [storage mode] Supported TINYINT UNSIGNED/SMALLINT UNSIGNED/ MEDIUMINT UNSIGNED/INT UNSIGNED/BIGINT UNSIGNED type.
  • [storage mode] Reduced storage size for ENUM.

Release 2.04 - 2012/06/29

Improvements

  • [wrapper mode] Supported disable/enable keys in bulk insert. [#1311]

Fixes

  • Fixed to disable query cache with transaction. [#1384]
  • Disabled partition explicitly. [#1391]
  • [rpm][deb] Fixed to ensure deleting mroonga plugin from mysql.plugin table before install. [groonga-dev,00948] [Suggested by Kazuhiro Isobe]
  • Fixed a crash bug by setting nonexistent path to mroonga_log_file variable. [#1404] [Reported by @nabebeb]
  • [experimental] Supported mroonga related data path change. [groonga-dev,00914] [#1392] [Suggested by Kazuhiro Isobe]

Thanks

  • Kazuhiro Isobe
  • @nabebeb

Release 2.03 - 2012/05/29

Caution

This release has a backward incompatible change against multiple column index. If you have any tables that uses Storage mode and any multiple comlumn indexes, please recreate those indexes by ALTER TABLE DISABLE KEYS and ALTER TABLE ENBALE KEYS:

mysql> ALTER TABLE table_name DISABLE KEYS;
mysql> ALTER TABLE table_name ENABLE KEYS;

Improvements

  • [storage mode] Supported disable/enable keys in bulk insert. [#1310]
  • [rpm][centos] Supported MySQL 5.5.24.
  • [rpm][fedora] Supported MySQL 5.5.23.
  • Added mroonga_match_escalation_threshold system variable.
  • Required groonga 2.0.3 or later.
  • [yum] Changed RPM package name that provides yum repository from groonga-repository to groonga-release to follow RPM package name convension such as centos-release and fedora-release.
  • [mac os x] Supported installing by Homebrew. See Install about details.

Fixes

  • Fixed build failure on Mac OS X.
  • [wrapper mode] Fixed a bug that searching in transaction reports not found error. [#1322][groonga-dev,00746] [Reported by Takken Ishibashi]
  • [rpm] Fixed a bug that mroonga plugin is unregistered when upgrading. [groonga-dev,00810] [Reported by Takken Ishibashi] [Patch by Iwai, Masaharu]
  • Fixed a bug that row based replication transfers wrong data on MySQL 5.5 or earlier. [#1379][groonga-dev,00902] [Reported by Kenji Doi]

Thanks

  • Takken Ishibashi
  • Iwai, Masaharu
  • Kenji Doi

Release 2.02 - 2012/04/29

Caution

The package sign key is changed since this release. Import the new package sign key before updating groogna packages.

Debian/Ubuntu:

% sudo apt-get update
% sudo apt-get -y --allow-unauthenticated install groonga-keyring

CentOS/Fedora:

% sudo yum update
% sudo yum install --nogpgcheck -y groonga-repository

Caution

This release breaks a backward compatibility for ENUM type. If you have ENUM type and it has 256 or more values, you need to dump your table before upgrade and restore your table after upgrade.

Caution

This release breaks a backward compatibility for SET type. If you have SET type and it has 32 or more values, you need to dump your table before upgrade and restore your table after upgrade.

Improvements

  • Added workaround for build for GCC 4.7 and MySQL 5.5.22. The combination makes build error with -Wdeprecated gcc option. [#1337] [Reported by Kazuhiko Shiozaki]
  • [mariadb] Supported MariaDB 5.5.23. [#1339] [Reported by Kazuhiko Shiozaki] [Reported by Ryo Onodera]
  • [storage mode] Stopped needless primary key truncated warning on REPLACE.
  • [storage mode] Supported search ENUM values by index. [#1336] [Suggested by @104yuki_n]
  • [incompatible] Changed groonga type for ENUM to unsigned 2bytes integer type from signed 2bytes integer type. ENUM column recreation is needed.
  • [incompatible] Changed groonga type for SET to unsigned 8bytes integer type from signed 8bytes integer type. SET column recreation is needed.
  • Supported MySQL 5.5.23.
  • Required groonga 2.0.2 or later.
  • [incompatible][experimental] Changed to use similar search instead of phrase search for MATCH AGAINST IN NATURAL LANGUAGE MODE.
  • [apt][yum] Changed package sign key.
  • Supported Ubuntu 12.04 Precise Pangolin.

Fixes

  • [storage mode] Fixed wrong key length is used.
  • Fixed a crash bug that is caused when searching with updaging very large inverted index. [#1321] [groonga-dev,00743] [Reported by Takashi Kawano] [groonga-dev,00746] [Reported by Takken Ishibashi]
  • Fixed a bug that truncated table has invalid tokenizer and encoding. [#1335] [Reported by @boss_sato]
  • Fixed a bug that the first insert is failed with Spider and mroonga combination. [#1319] [groonga-dev,00736] [Reported by Takayuki Honda]

Thanks

  • Takashi Kawano
  • @boss_sato
  • Kazuhiko Shiozaki
  • Ryo Onodera
  • @104yuki_n
  • Takayuki Honda
  • Takken Ishibashi

Release 2.01 - 2012/03/29

Improvements

  • Supported MySQL 5.5.22.
  • Supported MySQL 5.1.62.
  • Required groonga 2.0.1 or later.
  • [rpm] Improved plugin uninstall on upgrade.
  • [rpm] Improved plugin uninstall on upgrade.
  • [wrapper mode] Supported INSERT ON DUPLICATE KEY ERROR with MyISAM. [#1300] [Reported by @104yuki_n]
  • [wrapper mode] Used wrapped table's table_flags() correctly. [#1304]
  • Added --with-valgrind configure option for MySQL that enables Valgrind support.
  • [mariadb] Supported DATETIME type with fraction seconds.
  • Supported building without geometry support. [#1313] [Reported by Kazuhiko]
  • [storage mode] Supported multiple column index with optimization build flags on i386 environment. [Reported by Kazuhiko]
  • [wrapper mode] Confirmed InnoDB tests are passed with wrapper mode.
  • [solaris] Supported build on Solaris 11. [Reported by Kazuhiko]
  • [mariadb55] Supported mroonga_default_parser with MariaDB 5.5. [#1314] [Reported by Kazuhiko]
  • [mariadb55] Supported ORDER LIMIT optimization with MariaDB 5.5. [#1315] [Reported by Kazuhiko]
  • [doc] Added about MeCab.
  • [storage mode] Supported index search for 0 value. [Reported by @104yuki_n]
  • [storage mode] Supported Ubuntu Hardy with optimize build flags. [Reported by Kazuhiko]
  • Added logos .
  • Updated HTML design.

Fixes

  • [storage mode] Fixed a memory leak.
  • [storage mode] Fixed a bug that search by multi column index may not return some found records. [#1300] [Reported by @ytaka5]
  • [storage mode] Fixed a bug that COUNT (*) isn't effective. [groonga-dev,00717] [Reported by Takayuki Honda]
  • Fixed a memory leak on DROP DATABASE.
  • [storage mode] Fixed a bug that last_insert_grn_id() may return broken value on 32bit environment. [Reported by Kazuhiko]
  • [storage mode] Fixed a bug that COUNT (*) may return 0. [groonga-dev,00736] [Reported by Takayuki Honda]

Thanks

  • @ytaka5
  • @104yuki_n
  • Takayuki Honda
  • Kazuhiko

Release 2.00 - 2012/02/29

Caution

This release breaks backward compatibility. We need to dump and restore our database for upgrading.

In this release, mroonga has two changes that requires database recreation:

  1. Supported all characters for database, table and column names.
  2. Groonga's native time data type is used for YEAR type in MySQL.

Here are upgrade sequence.

We dump a database that uses mroonga:

% mysqldump MY_MROONGA_DATABASE > database-mroonga.dump

We drop the existing database:

% mysql -u root -e 'DROP DATABASE MY_MROONGA_DATABASE'

We upgrade to "mroonga" storage engine. We will use apt-get on Debian GNU/Linux or Ubuntu and yum on CentOS or Fedora.

apt-get:

% sudo apt-get install -y mysql-server-mroonga

yum:

% sudo yum remove -y mysql-mroonga
% sudo yum install -y mysql-mroonga

Caution

We don't forget to run yum remove before yum install. If we forget to run yum remove, we will break a MySQL's system table.

We recreate a database:

% mysql -u root -e 'CREATE DATABASE MY_MROONGA_DATABASE'

We restore a database by modified dump file:

% mysql -u root MY_MROONGA_DATABASE < database-mroonga.dump

Now, we can use mroonga 2.00.

Improvements

  • Supported MySQL 5.5.21.
  • Required groonga 2.0.0 or later.
  • Supported TIMESTAMP with fractional seconds on MySQL 5.6 and MariaDB.
  • [storage mode] Supported ORDER LIMIT optimization on no primary key.
  • [storage mode] Supported ORDER LIMIT optimization with fulltext search and COLUMN = INT_VALUE.
  • [storage mode] Supported fulltext search in sub query. [Reported by @camyuy]
  • [incompatible] Mapped YEAR in MySQL to Time in groonga to improve groonga integration.
  • [storage mode] Removed a needless write lock on update. [#1271] [Reported by Takahiro Nagai]
  • Added mroonga_enable_optimization system variable to on/off optimization. It's useful for benchmark.
  • [wrapper mode] Supported temporary table. [#1267]
  • [incompatible] Supported / in database name. [#1281]
  • Suppressed needless messages on INSERT ... ON DUPLICATE KEY UPDATE.
  • Supported INSERT ... ON DUPLICATE KEY UPDATE with UNIQUE KEY. [#1283] [Reported by @104yuki_n]
  • Supported DATETIME, DATE, TIMESTAMP, TIME, DECIMAL, YEAR for primary key.
  • [incompatible] Supported all characters for database, table and column names. [#1284]
  • [wrapper mode] Supported 255 bytes over index. [#1282]
  • [wrapper mode] Supported updating primary key. [#1195]
  • [wrapper mode] Supported error handling on ALTER TABLE. [#1195]
  • [wrapper mode] Improved error message on unsupported geometry type like LineString. [#1195]
  • [wrapper mode] Supported INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS. [#1195]

Fixes

  • [rpm] Changed to ensure re-install plugin.
  • [doc] Fixed wrong storage engine name. [Reported by Tomoatsu Shimada]

Thanks

  • @camyuy
  • Takahiro Nagai
  • Tomoatsu Shimada
  • @104yuki_n