Hibernate @Formula данные из другой таблицы

@Embeddable
class UserGroupId implements Serializable {
    @Column(name="ID", insertable = false, updatable = false)
    private Long id;
 
    @Column(name="VERSION", insertable = false, updatable = false)
    private Integer version;
 
    public UserGroupId() {
    }
}
 
@Entity
@Table(name = "User")
public class User {
 
    @EmbeddedId
    private UserGroupId Id;
    @Column(name = "ADDRESS", insertable = false, updatable = false)
    private String address;
    @Column(name = "DISTRICT_CODE", insertable = false, updatable = false)
    private String districtCode;
    @Column(name = "DISTRICT_NAME")
    @Formula("select r.district_name from region r where r.district_code = district_code")
    private String districtName;
 
    public User() {
    }
}

@Entity
@Table(name = "Region")
public class RegionDistrict {
 
    protected String districtCode;
    protected String districtName;
 
    public RegionDistrict() {
    }
 
    @Id
    @Column(name = "DISTRICT_CODE", nullable = false)
    public String getDistrictCode() {
        return districtCode;
    }
 
    public void setDistrictCode(String districtCode) {
        this.districtCode = districtCode;
    }
 
    @Column(name = "DISTRICT_NAME")
    public String getDistrictName() {
        return districtName;
    }
 
    public void setDistrictName(String districtName) {
        this.districtName = districtName;
    }
 
}