表备注在Schema中如何执行?不是列备注

在Migration里面创建表时如何给表备注???

CREATE TABLE

t_city

(

id

int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'ID',

name

varchar(255) NOT NULL DEFAULT '' COMMENT '名称|required',

deep

smallint(5) unsigned NOT NULL DEFAULT '1' COMMENT '层级/hide',

parent_id

int(10) unsigned NOT NULL DEFAULT '0' COMMENT '父id|number/tree',

lft

int(10) unsigned NOT NULL DEFAULT '0' COMMENT '左边界/hide',

rght

int(10) unsigned NOT NULL DEFAULT '0' COMMENT '右边界/hide',

ctime

int(10) unsigned NOT NULL DEFAULT '0' COMMENT '创建时间/time',

utime

int(10) unsigned NOT NULL DEFAULT '0' COMMENT '修改时间/time',

status

tinyint(3) NOT NULL DEFAULT '1' COMMENT '状态:0-已删除,1-正常,2-不显示',
PRIMARY KEY (

id

),
KEY

status

(

status

),
KEY

lft, rght

(

lft

,

rght

),
KEY

deep

(

deep

)
) ENGINE=InnoDB AUTO_INCREMENT=3248 DEFAULT CHARSET=utf8 COMMENT='城市';