CREATE TABLE IF NOT EXISTS `user_role` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `roleId` varchar(255) NOT NULL,
  `is_default` tinyint(1) NOT NULL,
  `parent_id` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE IF NOT EXISTS `user_role_linker` (
  `user_id` int(11) unsigned NOT NULL,
  `role_id` int(11) NOT NULL,
  PRIMARY KEY (`user_id`,`role_id`),
  KEY `role_id` (`role_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;