ERD Entity @AllArgsConstructor @NoArgsConstructor @Getter @Builder @Entity @ToString(callSuper = true) @EqualsAndHashCode(callSuper = true) public class Post extends BaseEntity { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Integer id; private String body; private String title; @ManyToOne(fetch = LAZY, cascade = CascadeType.ALL) @JoinColumn(name = "user_id") private User user;..