title: exclude member while using Fetch in Petapoco
body: <p>Thinking of trying to use Petapoco.Fetch where member "content" is an c# object.</p>
  
  <p>"Content" member is byte[] member which I store in cache og want to retrieve specially .. not from database.</p>
  
  <p>So:</p>
  
  <pre><code>SQL = "select * table.FundDocument";
  
  List&lt;FundDocument&gt; fundDocuments = new List&lt;FundDocument&gt;();
  fundDocuments = database.Fetch&lt;FundDocument&gt;(SQL)
                  .IgnoreORExcept(FundDocument.content = GetDocumentFromCache(id));
  </code></pre>
  
  <p>So petapoco object would fetch everything except the member "content", it would fetch that from the function GetDocumentFromCache();</p>
  
  <p>Is this possible?</p>