Hur man slår samman 2 resultatuppsättningar med motsatt ordning i MySQL

Prova detta. Fiddler Demo

SELECT * FROM 
(
      select * from table where id in (1,2,3,4) order by data desc
) Test
UNION
SELECT * FROM 
(
      select * from table where id in (5,6,7) order by data asc
) Test2