title: Set timestamp on insert when loading CSV
body: <p>I have a <code>Timestamp</code> field that is defined to be automatically updated with the <code>CURRENT_TIMESTAMP</code> value.<br/>
  It works fine when I fire a query, but when I import a csv (which I'm forced to do since one of the fields is longtext) , the update does not work.</p>
  
  <p>I have tried to:</p>
  
  <ol>
  <li>Give timestamp column as <code>now()</code> function in csv</li>
  <li>Manually enter timestamp like <code>2013-08-08</code> in the csv</li>
  </ol>
  
  <p>Both the approaches do not work</p>