Oracle® Database 11g / 12c / 18c error codes ORA-54020: Virtual column expression cannot be changed because it is a subpartitioning column

ORA-54020: Virtual column expression cannot be changed because it is a subpartitioning column

Oracle Error Code: ORA-54020

Cause: Attempted to modify the expression of a virtual column that was also a subpartitioning column.

Action: This is not supported.