摘要：
MySQL 8.0_mode=NO_AUTO_CREATE_USER中的SQL已被放弃。在MySQL8.0.11中，已经删除了与帐户管理相关的一些声明功能，例如使用GRANT语句来定义用户帐户的非特权特性
在Mysql 8.0中
sql_mode= NO_AUTO_CREATE_USER
已经被废弃了。
In MySQL 8.0.11, several deprecated features related to account management have been removed, such as use of the GRANT statement to modify nonprivilege characteristics of user accounts, the NO_AUTO_CREATE_USER SQL mode, the PASSWORD() function, and the old_passwords system variable.
Replication from MySQL 5.7 to 8.0 of statements that refer to these removed features can cause replication failure. Applications that use any of the removed features should be revised to avoid them and use alternatives when possible, as described in Features Removed in MySQL 8.0.
To avoid a startup failure on MySQL 8.0, remove any instance of NO_AUTO_CREATE_USER from sql_mode system variable settings in MySQL option files.
Loading a dump file that includes the NO_AUTO_CREATE_USER SQL mode in stored program definitions into a MySQL 8.0 server causes a failure. As of MySQL 5.7.24 and MySQL 8.0.13, mysqldump removes NO_AUTO_CREATE_USER from stored program definitions. Dump files created with an earlier version of mysqldump must be modified manually to remove instances of NO_AUTO_CREATE_USER.