title: Select all column in QueryExpression CRM 2011
body: <p>I have this QueryExpression in my code.</p>
  
  <pre><code> QueryExpression query = new QueryExpression() { };
  
   query.EntityName = "country";
   query.ColumnSet = new ColumnSet("name", "2digitiso", "3digitiso");
  
   EntityCollection retrieved = _service.RetrieveMultiple(query);
  </code></pre>
  
  <p>My question is, Is there a way to select all the columns in the "country" without providing any ColumnSet? pretty much I want something like the <code>SELECT *</code> from the SQL Query.</p>