MG
Size: a a a
MG
AS
MG
AS
select
t2.*
from t1 as t1_from
join t1 as t1_to on t1_to.group_id = t1_from.group_id
join t2 on t1_to.brand = t2.brand and t1_to.article = t2.article
where
t1.brand = <some brand> and t1.artilce = <some articale>
AS
AS
AS
MG
AS
AS
MG
AS
MG
AS
AS
MG
AS
AS
AS
MG