Google.visualization.DataTable filtering not working
<p>I have a <a href="http://code.google.com/apis/visualization/documentation/reference.html#DataTable" rel="nofollow">DataTable</a> with 3 columns.<br>
The method <a href="http://code.google.com/apis/visualization/documentation/reference.html#DataTable_getFilteredRows" rel="nofollow"><code>getFilteredRows</code></a> is working on two columns one of string type and other of number.<br>
But it isn't working on third column that is also of string type.<br>
It shows empty table. Can you help to know the reason?</p>
