I have two equal queries whit different filter applied on the **same table**.

The first query returns `(1,2,3,4,5)` and the second returns `(3,4,5)`.

I want apply the MINUS/EXCEPT operator:

```
select1 minus select2 = (1,2)

```

How should I implements this logic using firebird SQL dialect ? (I'm using superserver v2.1)

I'm getting the opposite results performing

```
select1 UNION select2 = (1,2,3,4,5)

```

thanks