인프런 커뮤니티 질문&답변

public class JpaMain {

    public static void main(String[] args) {

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("hello");
        EntityManager em = emf.createEntityManager();
        EntityTransaction tx = em.getTransaction();

        try {
            tx.begin();

            Team team = new Team();
            team.setName("teamA");
            em.persist(team);

            Member member = new Member();
            member.setUsername("member1");
            member.setAge(10);
            member.changeTeam(team);
            em.persist(member);


            List<Member> result = em.createQuery("select m from Member m inner join m.team t", Member.class)
                    .getResultList();
            
            tx.commit();
        } catch (Exception ex) {
            ex.printStackTrace();
            tx.rollback();
        } finally {
            em.close();
            emf.close();
        }
        
    }
}

저는 Member entity에 team을 LAZY 로 세팅하지 않아도
Hibernate: 
    /* select
        m 
    from
        Member m 
    inner join
        m.team t */ select
            member0_.id as id1_0_,
            member0_.age as age2_0_,
            member0_.TEAM_ID as TEAM_ID4_0_,
            member0_.username as username3_0_ 
        from
            Member member0_ 
        inner join
            Team team1_ 
                on member0_.TEAM_ID=team1_.id

이 쿼리만 나갑니다.
강사님는 team query가 나가는 것으로 영상에 찍었는데 저와 좀 다르네요.