Você pode enumerar linhas com
row_number()
e faça pivot
:select *
from (
select d.*, row_number() over(partition by type order by id) rn from data d)
pivot (max(type) type, max(id) id for type in ('test1' t1, 'test2' t2))
row_number()
e faça pivot
:select *
from (
select d.*, row_number() over(partition by type order by id) rn from data d)
pivot (max(type) type, max(id) id for type in ('test1' t1, 'test2' t2))