인프런 커뮤니티 질문&답변

[질문 템플릿]
1. 강의 내용과 관련된 질문인가요? 예
2. 인프런의 질문 게시판과 자주 하는 질문에 없는 내용인가요? 예
3. 질문 잘하기 메뉴얼을 읽어보셨나요? 예

[질문 내용]

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "team_id")
private Team team;

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

Member member1 = new Member();
member1.setUsername("member1");
member1.setAge(10);
member1.changeTeam(teamA);
em.persist(member1);
Member member2 = new Member();
member2.setUsername("member2");
member2.setAge(20);
member2.changeTeam(teamA);
em.persist(member2);
Member member3 = new Member();
member3.setUsername("member3");
member3.setAge(30);
member3.changeTeam(teamB);
em.persist(member3);

em.flush();
em.clear();

String query = "select t from Team t join fetch t.members";
List<Team> result  = em.createQuery(query, Team.class)
           .getResultList();

System.out.println("result.size() = " + result.size());

패치 조인을 해도 왜 2번만 나올까요?

혹시나 해서 파일도 올려봅니다.

https://drive.google.com/file/d/1nOHKHJdVRezwrNpd_1G_3-EyeD8Neymg/view?usp=share_link