CREATE TABLE IF NOT EXISTS `t_comment`
(
    `id`              bigint(20) NOT NULL AUTO_INCREMENT,
    `create_time`     datetime(6)  DEFAULT NULL,
    `update_time`     datetime(6)  DEFAULT NULL,
    `content`         varchar(255) DEFAULT NULL,
    `goods_serial_no` varchar(255) DEFAULT NULL,
    `order_no`        varchar(255) DEFAULT NULL,
    `userid`          bigint(20)   DEFAULT NULL,
    PRIMARY KEY (`id`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4;