DROP TABLE IF EXISTS `T_TIP`;
CREATE TABLE `T_TIP` (
  `UUID` varchar(32) NOT NULL DEFAULT '',
  `MODEL` varchar(256) DEFAULT NULL,
  `BUSINESS_ID` varchar(64) DEFAULT NULL,
  `CREATE_TIME` datetime DEFAULT NULL,
  `TIME_STAMP` bigint(20) DEFAULT NULL,
  PRIMARY KEY (`UUID`),
  KEY `INDEX_BUSINESS_ID` (`BUSINESS_ID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;


ALTER TABLE `T_TIP`
ADD COLUMN `TARGET_USERNAME`  varchar(64) NULL AFTER `TIME_STAMP`;