ALTER TABLE `instance`
CHANGE `id` `id` INT(10) UNSIGNED DEFAULT '0' NOT NULL,
CHANGE `map` `map` SMALLINT(5) UNSIGNED DEFAULT '0' NOT NULL,
CHANGE `resettime` `resettime` INT(10) UNSIGNED DEFAULT '0' NOT NULL,
CHANGE `difficulty` `difficulty` TINYINT(3) UNSIGNED DEFAULT '0' NOT NULL,
CHANGE `data` `data` TINYTEXT NOT NULL;