问Hive Bug系列之关联结果不正确详解？

select count(1)
from table1 a
join(
select * from table2 c
join table3 d
on c.f1 = d.f2
)e
on a.ff = e.ff

create temporary table tmp_table as
select * from table2 c
join table3 d
on c.f1 = d.f2

select count(1)
from table1 a
join tmp_table e
on a.ff = e.ff