Oracle Error ORA-36632: (XSDUNION01) The concat dimension workspace object is not currently defined as UNIQUE.

Oracle Error Message

ORA-36632: (XSDUNION01) The concat dimension workspace object is not currently defined as UNIQUE.

Reason for the Error

Attempt was made to CHGDFN a concat, which is already non-unique, to NOT UNIQUE.

Solution

Since the concat is already non-unique, this command is unnecessary.