We have simple app on gae that broadcasts each entity to a few hundred
users.
We had some scaling issues and now we are trying yo use "Relation
index entities" approach that was described in a talk by Brett Slatkin
(http://www.youtube.com/watch?v=AgaL6NGpkB8).
His sample:
indexes = db.GqlQuery("SELECT __key__ FROM MessageIndex WHERE
receivers = :1", me)
keys = [k.parent() for k in indexes]
messages = db.get(keys)
I was wondering why was he using k.parent() and not k.parent_key()?
Isn't k.parent() actually loading the entity from the datastore? Or is
the parent entity entity already loaded? But then we don't need to run
'messages = db.get(keys)' right?
Am I missing something?
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