MariaDB> alter table fb_likes modify column user bigint unsigned not null;

Stage: 1 of 2 'copy to tmp table'  0.057% of stage done

^CCtrl-C -- query killed. Continuing normally.

^Z

[1]+  Stopped                 mysql

| 2477097 | dragonscale | localhost            | customer_com | Killed      |     792 | Enabling keys                                                         | alter table fb_likes modify column user bigint unsigned not null                      |    0.000 |

Create Table: CREATE TABLE `fb_likes` (

  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,

  `user` char(255) NOT NULL DEFAULT '',

  `name` char(255) NOT NULL DEFAULT '',

  `category` char(255) NOT NULL DEFAULT '',

  `object_id` char(255) NOT NULL DEFAULT '',

  `created_time` datetime NOT NULL,

  `updatedAt` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

  `pushBrand` tinyint(4) DEFAULT NULL,

  PRIMARY KEY (`id`),

  UNIQUE KEY `user` (`user`,`object_id`),

  KEY `updatedAt` (`updatedAt`),

  KEY `pushBrand` (`pushBrand`)

) ENGINE=InnoDB AUTO_INCREMENT=131182304 DEFAULT CHARSET=utf8