GQL Query Not Returning Results on StringProperty Query Test for Equality
===

    class MyEntity(db.Model):
    	timestamp = db.DateTimeProperty()
    	title = db.StringProperty()
    	number = db.FloatProperty()
    
    db.GqlQuery("SELECT * FROM MyEntity WHERE title = 'mystring' AND timestamp >= date('2012-01-01') AND timestamp <= date('2012-12-31') ORDER BY timestamp DESC").fetch(1000)

This should fetch ~600 entities on app engine. On my dev server it behaves as expected, builds the index.yaml, I upload it, test on server but on app engine it does not return anything.

    Index:
    - kind: MyEntity
      properties:
      - name: title
      - name: timestamp
        direction: desc


I try splitting the query down on datastore viewer to see where the issue is and the timestamp constraints work as expected. The query returns nothing on `WHERE title = 'mystring'` when it should be returning a bunch of entities.

I vaguely remember fussy filtering where you had to call `.filter("prop =",propValue)` with the space between property and operator, but this is a GqlQuery so it's not that (and I tried that format with the GQL too).

Anyone know what my issue is?