title: Titan: fetch sorted result
body: <p>Take the scenario of SO, </p>
  
  <ol>
  <li><p>when we click <code>Questions</code> button it shows all question regardless of tag,</p></li>
  <li><p>when we click a <code>tag</code> it only shows question asked to that particular tag.</p></li>
  </ol>
  
  <p>Second is ok, I will just go to that particular Tag vertex and fetch the sorted data based on attached edge.</p>
  
  <p>How will i implement the first scenario in sorted order.? I will have java question, html question, c++ question vertex... so and so. How will I fetch all these in sorted order? What will be the query?</p>