title: Finding latest record entry
body: <p>I have data like this.</p>
  
  <pre><code>REPORTER    SUMMARY                CREATED          UPDATED status  servicetype  
  e159299 Route card from August  7/29/2013   22:46.0    5    New Route Card
  e159299 I have returned the     6/11/2013   32:09.7    5    Cancel Route Card
  e159324 New Route Card: RBI     1/2/2013    00:51.0    5    New Route Card
  e159324 Hi, I would require     10/30/2013  35:23.0    5    New Route Card
  e159299 Cancel Route Card       4/30/2013   53:26.2    5    Cancel Route Card
  </code></pre>
  
  <p>I need to get the latest record entry for a given reporter. 
  i.e I need to do group by for reporter and need to get the latest record of combining created field.</p>
  
  <p>My output must be like this.   </p>
  
  <pre><code> e159299    Route card from August  7/29/2013   22:46.0    5    New Route Card  
   e159324    Hi, I would require     10/30/2013  35:23.0    5    New Route Card
  </code></pre>