This statement creates a new user, specified with a password. In the MySQL privilege system, a user is the combination of a username and the host from which they are connecting from. Thus, it is possible to create a user
'newuser2'@'192.168.1.1' who is only able to connect from the IP address
192.168.1.1. It is also possible to have two users have the same user-portion, and different permissions as they login from different hosts.
mysql> CREATE USER 'newuser' IDENTIFIED BY 'newuserpassword'; Query OK, 1 row affected (0.04 sec) mysql> CREATE USER 'newuser2'@'192.168.1.1' IDENTIFIED BY 'newuserpassword'; Query OK, 1 row affected (0.02 sec)
CREATEoptions are not yet supported by TiDB, and will be parsed but ignored.