rename database testdb1 to testdb2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'database testdb1 to testdb2' at line 1
ALTER DATABASE wrong UPGRADE DATA DIRECTORY NAME;
ERROR HY000: Incorrect usage of ALTER DATABASE UPGRADE DATA DIRECTORY NAME and name
ALTER DATABASE `#mysql41#not-supported` UPGRADE DATA DIRECTORY NAME;
ERROR HY000: Incorrect usage of ALTER DATABASE UPGRADE DATA DIRECTORY NAME and name
ALTER DATABASE `#mysql51#not-yet` UPGRADE DATA DIRECTORY NAME;
ERROR HY000: Incorrect usage of ALTER DATABASE UPGRADE DATA DIRECTORY NAME and name
ALTER DATABASE `#mysql50#` UPGRADE DATA DIRECTORY NAME;
ERROR 42000: Incorrect database name '#mysql50#'
ALTER DATABASE `#mysql50#upgrade-me` UPGRADE DATA DIRECTORY NAME;
ERROR 42000: Unknown database '#mysql50#upgrade-me'