所以我尝试将sql文件导入rds（1G MEM，1 CPU）。sql文件好像1.4G

mysql -h xxxx.rds.amazonaws.com -u 用户 -ppass –max-allowed-packet=33554432 db
< db.sql

它卡在：

ERROR 1227 (42000) at line 374: Access denied; you need (at least one of) the SUPER privilege(s) for this operation

实际的sql内容是：

/*!50003 CREATE*/ /*!50017 DEFINER=`another_user`@`1.2.3.4`*/ /*!50003 TRIGGER `change_log_BINS` BEFORE INSERT ON `change_log` FOR EACH ROW
IF (NEW.created_at IS NULL OR NEW.created_at = '00-00-00 00:00:00' OR NEW.created_at = '') THEN
        SET NEW.created_at = NOW();
END IF */;;

another_userrds 中不存在，所以我这样做：

GRANT ALL PRIVILEGES ON db.* TO another_user@'localhost';

仍然没有运气。