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| author | akrus <akrus@flygroup.st> | 2013-02-04 14:13:38 +0400 |
|---|---|---|
| committer | akrus <akrus@flygroup.st> | 2013-02-04 14:13:38 +0400 |
| commit | bb61951098fb71c43d2f606727d43d22c729089f (patch) | |
| tree | efdaf1efa3f8c2107dde83ff2d615d5eb5974e36 | |
| parent | 524291493e64196d8ce02f4b637ea0ee1a176d0a (diff) | |
| download | hercules-bb61951098fb71c43d2f606727d43d22c729089f.tar.gz hercules-bb61951098fb71c43d2f606727d43d22c729089f.tar.bz2 hercules-bb61951098fb71c43d2f606727d43d22c729089f.tar.xz hercules-bb61951098fb71c43d2f606727d43d22c729089f.zip | |
Getting rid of unused indexes.
Source: http://dev.mysql.com/doc/refman/5.5/en/multiple-column-indexes.html
If the table has a multiple-column index, any leftmost prefix of the index can be used by the optimizer to find rows. For example, if you have a three-column index on (col1, col2, col3), you have indexed search capabilities on (col1), (col1, col2), and (col1, col2, col3).
| -rw-r--r-- | sql-files/main.sql | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/sql-files/main.sql b/sql-files/main.sql index f159260f1..e69279710 100644 --- a/sql-files/main.sql +++ b/sql-files/main.sql @@ -111,7 +111,6 @@ CREATE TABLE IF NOT EXISTS `char` ( KEY `account_id` (`account_id`), KEY `party_id` (`party_id`), KEY `guild_id` (`guild_id`), - KEY `name` (`name`), KEY `online` (`online`) ) ENGINE=MyISAM AUTO_INCREMENT=150000; @@ -181,8 +180,7 @@ CREATE TABLE IF NOT EXISTS `hotkey` ( `type` TINYINT(1) unsigned NOT NULL default '0', `itemskill_id` INT(11) unsigned NOT NULL default '0', `skill_lvl` TINYINT(4) unsigned NOT NULL default '0', - PRIMARY KEY (`char_id`,`hotkey`), - INDEX (`char_id`) + PRIMARY KEY (`char_id`,`hotkey`) ) ENGINE=MyISAM; -- @@ -196,8 +194,7 @@ CREATE TABLE IF NOT EXISTS `global_reg_value` ( `type` tinyint(1) NOT NULL default '3', `account_id` int(11) unsigned NOT NULL default '0', PRIMARY KEY (`char_id`,`str`,`account_id`), - KEY `account_id` (`account_id`), - KEY `char_id` (`char_id`) + KEY `account_id` (`account_id`) ) ENGINE=MyISAM; -- @@ -310,8 +307,7 @@ CREATE TABLE IF NOT EXISTS `guild_position` ( `name` varchar(24) NOT NULL default '', `mode` tinyint(11) unsigned NOT NULL default '0', `exp_mode` tinyint(11) unsigned NOT NULL default '0', - PRIMARY KEY (`guild_id`,`position`), - KEY `guild_id` (`guild_id`) + PRIMARY KEY (`guild_id`,`position`) ) ENGINE=MyISAM; -- @@ -622,8 +618,7 @@ CREATE TABLE IF NOT EXISTS `skill` ( `char_id` int(11) unsigned NOT NULL default '0', `id` smallint(11) unsigned NOT NULL default '0', `lv` tinyint(4) unsigned NOT NULL default '0', - PRIMARY KEY (`char_id`,`id`), - KEY `char_id` (`char_id`) + PRIMARY KEY (`char_id`,`id`) ) ENGINE=MyISAM; -- @@ -634,8 +629,7 @@ CREATE TABLE IF NOT EXISTS `skill_homunculus` ( `homun_id` int(11) NOT NULL, `id` int(11) NOT NULL, `lv` smallint(6) NOT NULL, - PRIMARY KEY (`homun_id`,`id`), - KEY `homun_id` (`homun_id`) + PRIMARY KEY (`homun_id`,`id`) ) ENGINE=MyISAM; -- |