数据库视图hibernate映射

Question

我正在使用数据库视图（view1）的Hibernate映射，它包含另一个视图（view2）。它有效，但我收到了很多数据库的请求，我想优化它。有什么问题？

@Entity
@Table(name = "view1")
public class View1 {

    @Id
    @Column(name = "id")
    private Long id;
    @JoinColumn(name = "id", referencedColumnName = "operation", insertable = false, updatable = false)
    @ManyToOne(fetch = FetchType.LAZY)
    private View2 view2;
...
}

@Entity
@Table(name = "view2")
public class View2 {

    @Id
    @Column(name = "id")
    private Long id;
    @Basic(optional = false)
    @Column(name = "operation")
    private Long operation;
...
}

下一个JPQL查询会产生太多请求。

select e from View1 e left join fetch e.view2

生成的本机SQL，重复60次以上

select view20_.id as id1_221_0_, view20_.operation as operati16_221_0_