| ERROR | set operator encountered in mv |
| CAUSE | The capability in question is not supported when the materialized view uses set operators such as UNION, UNION ALL, MINUS, etc. |
| ACTION | Re-phrase the query to avoid the use of set operators. |
| ERROR | set operator encountered in mv |
| CAUSE | The capability in question is not supported when the materialized view uses set operators such as UNION, UNION ALL, MINUS, etc. |
| ACTION | Re-phrase the query to avoid the use of set operators. |