非唯一列一对多映射上的Hibernate映射

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String username;

    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
    private List<Post> posts = new ArrayList<>();

    // Getters and Setters
}

@Entity
public class Post {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String title;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "user_id")
    private User user;

    // Getters and Setters
}

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String username;

    @OneToMany(mappedBy = "user", cascade = CascadeType.ALL, orphanRemoval = true)
    @BatchSize(size = 10)
    private List<Post> posts = new ArrayList<>();

    // Getters and Setters
}

@OneToMany(mappedBy = "user", cascade = {CascadeType.PERSIST, CascadeType.MERGE}, orphanRemoval = true)
private List<Post> posts = new ArrayList<>();

Query query = session.createQuery("FROM User u JOIN FETCH u.posts");
query.setFirstResult(0);
query.setMaxResults(10);
List<User> users = query.getResultList();