CREATE TABLE `user_device` (
  `id` int NOT NULL AUTO_INCREMENT,
  `mac_addr` varchar(30) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
  `model` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
  `add_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `ver` varchar(10) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  UNIQUE KEY `mac` (`mac_addr`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=2497 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci ROW_FORMAT=DYNAMIC;