What's the best way to count results in GQL?

Question

I figure one way to do a count is like this:

foo = db.GqlQuery(\"SELECT * FROM bar WHERE baz = \'baz\')
my_count = foo.count()

What I don\'

Answer 1

I haven't tried it, and this is an utter resource hog, but perhaps iterating with .fetch() and specifying the offset would work?

LIMIT=1000
def count(query):
   result = offset = 0
   gql_query = db.GqlQuery(query)
   while True:
     count = gql_query.fetch(LIMIT, offset)
     if count < LIMIT:
       return result
     result += count
     offset += LIMIT