title: where clause does not work in GAE datastore viewer
body: <p>I am new to GAE, please excuse for being naive.</p>
  
  <p>datastore viewer query with where clause returns "No results in Empty namespace.". </p>
  
  <p>For instance:
  select * from GaeUser 
  returns all the entires.</p>
  
  <p>Something like,<br>
  select * from GaeUser where firstName = 'somename' 
  or
  select * from GaeUser where dayOfBirth = 5
  returns nothing but the message No results in empty namespace.</p>
  
  <p>I am expecting some pointers on how to debug this. </p>
  
  <p>Thanks for reading this!!</p>