ORA-12031: cannot use primary key columns from materialized view log on string. string

ORA-12031: cannot use primary key columns from materialized view log on string. string

Cause: The materialized view log either did not have primary key columns logged, or the timestamp associated with the primary key columns was more recent than the last refresh time.

Action: A complete refresh is required before the next fast refresh. Add primary key columns to the materialized view log, if required.