title: What should be the PFQuery to fetch record for column type "array" at parse?
body: <p>I am having a column ID with type <code>Array</code>
  eg. </p>
  
  <pre><code>ID - ["1","3","5"]
      ID - ["2","3"]
      ID - ["9","6","3"]
  </code></pre>
  
  <p>at parse database</p>
  
  <p>Now I want to fetch those records where ID is contained with "3"</p>
  
  <pre><code> [getData whereKey:@"ID" matchesRegex:[NSString stringWithFormat:@"%d",intIndexPathM+1]];
  </code></pre>
  
  <p>This return empty array as well as not giving any error to recognize</p>
  
  <p>I search on <a href="https://www.parse.com/docs/ios_guide#queries/iOS" rel="nofollow">parse document</a> also but i didn't get any clue for this.</p>