title: JPA Entity not having the column from the table but query based on the non existing column in the entity
body: <p>I have an entity called <code>Person</code> which represent <code>person_tb</code>
  <code>person_tb</code> has 10 fields that includes <code>zip</code> and <code>country</code>. But these columns are not specified in the <code>Person</code> entity. The entity contains only 8 columns out of 10 columns in the actual table.</p>
  
  <p>Can I still run the query against person entity referring to the non-existing fields (but existing in the actual table)? (I am assuming its not possible)</p>
  
  <p>If the above is not possible, can I write native query based on the missing fields in the entity?</p>