Merge duplicate multiple result sets

If a stored procedure contains conditional statements, such as this:

``` sql
IF(@someVar < @otherVar) BEGIN
   SELECT a,b,c WHERE blah
ELSE
   SELECT a,b,c WHERE blah OR blah
END
```

The result sets will be the same, even though two can be returned.
Instead of including ResultSet1 and ResultSet2, these can be merged and instead use a single return model.
