title: Use SQL to Filter Drupal Views
body: <p>I have a content type with a CCK integer field which takes a unix timestamp. I would like to create a view with a filter that takes the MySQL function "UNIX_TIMESTAMP":</p>
  
  <p><img src="https://i.stack.imgur.com/EOJur.png" alt="screenshot"></p>
  
  <p>If there is no way of doing this, how can I alter the SQL generated for the view?</p>