title: How to use JPA 2.1 @NamedStoredProcedureQueries with void return parameters?
body: <p>Given the following annotated named stored procedure query:</p>
  
  <pre><code>@NamedStoredProcedureQueries({
      @NamedStoredProcedureQuery(
          name = "procedureName",
          procedureName = "stored_procedure"
      )
  })
  </code></pre>
  
  <p>Then executing with:</p>
  
  <pre><code>StoredProcedureQuery query = entityManager.createNamedStoredProcedureQuery("procedureName");
  query.executeUpdate();
  </code></pre>
  
  <p>The stored_procedure returns postgres <code>void</code>.</p>
  
  <p>Results in an exception: <code>Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: 1111
  </code>.</p>
  
  <p>How can this be resolved?</p>