| ERROR | In a set_function_specification, if DISTINCT is present, the expression must be a column_specification |
| CAUSE | In a set_function_specification, if DISTINCT is present, the expression must be a column_specification. |
| ACTION | None |
| ERROR | In a set_function_specification, if DISTINCT is present, the expression must be a column_specification |
| CAUSE | In a set_function_specification, if DISTINCT is present, the expression must be a column_specification. |
| ACTION | None |