ios_sign/database/sql/admin_role_user.sql

CREATE TABLE `admin_role_user` (
  `user_id` int(10) unsigned NOT NULL,
  `role_id` int(10) unsigned NOT NULL,
  PRIMARY KEY (`user_id`,`role_id`),
  KEY `role_user_role_id_foreign` (`role_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;