title: Not all identifier properties can be found in the ResultSetMapping
body: <p>I dont really what means the error that I put in the title:</p>
  
  <p>This is how I build my query builder :</p>
  
  <pre><code>$qb = $this-&gt;em-&gt;createQueryBuilder()
          -&gt;select('etablissement.numetb AS id')
          -&gt;addSelect("concat('Etablissement ', etablissement.numetb) AS name")
          -&gt;addSelect("etablissement.raisonsoc AS description")
          -&gt;addSelect("etablissement.datcreation AS datcreation")
          -&gt;addSelect("11 AS type")
          -&gt;addSelect("identity(etablissement.statut) AS statut")
          -&gt;from('MyBundle:MyEntity', 'etablissement')
          -&gt;orderBy('datcreation', 'DESC');
  </code></pre>
  
  <p>My repository is a service not linked to an entity (if it can help).</p>
  
  <p>Can you explain what means this error ? and how to solve it ?</p>
  
  <p>thank you</p>