SchemaRouter cannot handle schemas in upper case letters

Tested version 6.3.1

The existence of any schemas with names in UPPER CASE letters or Mixed Case letters will produce strange behaviors in maxscale schemarouter:

Strange behavior #1:
Querying directly on the table by specifying SCHEMA_NAME.table_name will produce an error:
ERROR 1142 (42000) at line 1: SELECT command denied to user 'edward'@'mx.edw.ee' for table 'test'
However, if the same user connects directly to the MariaDB server instead of through maxscale, he can easily query without error.

Strange Behavior #2:
show schemas command properly shows all schemas user has rights to. However, when the command is given: use SCHEMA_NAME; the session hangs - no response. Just hangs. CTRL+C to get out of it.

Strange Behavior #3:

MariaDB [(none)]> show schemas;

+--------------------+

| Database           |

+--------------------+

| JJ                 |

| dii                |

| information_schema |

| tek                |

+--------------------+

4 rows in set (0.000 sec)

MariaDB [(none)]> use JJ;

ERROR 1049 (42000): Unknown database: JJ

MariaDB [(none)]>

Strange Behavior #4
The existence of a schema with UPPER CASE name will cause similar problems for querying schemas with lower case names.