jpql

select t from Team t where t IN (select m.team from Member m where m.age >= 20)

select t from Team t where t IN (select t2 From Team t2 join t2.members m2 where m2.age >= 20)

-> 결과 같게 나오는데 같은 쿼리인게 맞을까요...?
-> 근데 이게 서브쿼리의 결과는 다른데 in을썼기때문에 같은결과가 나오는거일까요?