gistfile1.txt

version 1                       version 2                        version 3 
@Entity                        public class UserPost           public class UserInstitute 
public class User               {                               {
{                                String name;                   String name;
 String name;                    List<Post> post ;              List<Insitiute> insitute;  
 List<Post> post ;              }                                }  
 List<Insitiute> insitute;
}
"select from User u fetch join u.post where id = 1"
it will result in inner join query so correct but 
when i return User from Rest controller than it put 
another query for institute whihc is unnecessary .so i make
Dto and use map struct to solve my problem (version 2).
Than i need User and Institute and i make another DTO (version 3).
My question is that if i need just User than make another DTO? and 
If need User , Post , Institue togather than make another DTO ?
Please help to solve problem .