1、创建时间：CURRENT_TIMESTAMP

2、修改时间：ON UPDATE CURRENT_TIMESTAMP

DROP TABLE IF EXISTS `mall_pay_info`;
CREATE TABLE `mall_pay_info` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) DEFAULT NULL COMMENT '用户id',
  `order_no` bigint(20) NOT NULL COMMENT '订单号',
  `pay_platform` int(10) DEFAULT NULL COMMENT '支付平台:1-支付宝,2-微信',
  `platform_number` varchar(200) DEFAULT NULL COMMENT '支付流水号',
  `platform_status` varchar(20) DEFAULT NULL COMMENT '支付状态',
  `pay_amount` decimal(20,2) NOT NULL COMMENT '支付金额',
  `create_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_time` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uqe_order_no` (`order_no`),
  UNIQUE KEY `uqe_platform_number` (`platform_number`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;