DROP TABLE IF EXISTS Bugs;
CREATE TABLE Bugs (
id INT UNSIGNED PRIMARY KEY,
tag VARCHAR(64)
) DEFAULT CHARSET=utf8 COMMENT='engine "InnoDB"';
ALTER TABLE Bugs
CHANGE COLUMN
tag
tag VARCHAR(64) COMMENT 'It must consist of only alphabet and number.';
SHOW CREATE TABLE Bugs;
Table	Create Table
Bugs	CREATE TABLE `Bugs` (
  `id` int(10) unsigned NOT NULL,
  `tag` varchar(64) DEFAULT NULL COMMENT 'It must consist of only alphabet and number.',
  PRIMARY KEY (`id`)
) ENGINE=mroonga DEFAULT CHARSET=utf8 COMMENT='engine "InnoDB"'
DROP TABLE Bugs;
