title: CQLSH: Converting unix timestamp to datetime
body: <p>I am performing a cql query on a column that stores the values as unix timestmap, but want the results to output as datetime. Is there a way to do this?</p>
  
  <p>i.e. something like the following:</p>
  
  <pre><code>select convertToDateTime(column) from table;
  </code></pre>