Is it possible to have an official answer from the App Engine team?
I think these informations are vital for our applications; how can I
optimize something if I don't know what to optimize :)?
Having a simple Model like this:
class Example(db.Model):
foo = db.StringProperty()
bars= db.ListProperty(str)
and *1000* entities in the datastore, I'm interested in the cost of these
kind of operations:
entities_count = Example.all(keys_only = True).filter('bars=','spam').count()
entities_count = Example.all().count(10000)
entities = Example.all().fetch(10000)
entities =
Example.all().filter('bars=','spam').filter('bars=','fu').fetch(10000)
entities = Example.all().fetch(10000, offset=500)
Cross-post here:
http://stackoverflow.com/questions/7807529/how-many-datastore-reads-consume-each-fetch-count-and-query-operations
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