title: Queries with empty values from parse.com
body: <p>Somehow I couldn't find the answer to this.</p>
  
  <p>I am running a query to parse.com and want to download all of the rows that contain an empty value in one of my columns. </p>
  
  <pre><code> ParseQuery&lt;ParseObject&gt; query = ParseQuery.getQuery(Constants.myTestTable);
      query.whereEqualTo("MyColumn", "");
  </code></pre>
  
  <p>When I upload a csv to parse where MyColumn does not have any value the column cells on parse show "(undefined)" and I cannot retrieve the data. However, when I delete all content in the cell I am able to retrieve it. I want to be able to retrieve the data if the cell has the default "(undefined)" value from parse. I tried...</p>
  
  <pre><code>ParseQuery&lt;ParseObject&gt; query = ParseQuery.getQuery(Constants.myTestTable);
          query.whereEqualTo("MyColumn", null);
  </code></pre>
  
  <p>But that did not work either. I'm sure there is an easy solution to this, I just can't get the dang thing to work.</p>