title: Greenlum - How to create Indexed view
body: <p>I am trying to design a DW Process and I heard about Indexed views. Actually I want to create a view and it should update automatically when base tables are changed. </p>
  
  <p>Basically, all I need to do is:</p>
  
  <ul>
  <li>Want to create a regular view </li>
  <li>Then, Want to create a clustered index on that view</li>
  </ul>
  
  <p>Can explain with an query example.. </p>