If you can filter the subset based on the key_name values (some kind of prefix) you can use the method described in
http://djidjadji.appspot.com/2011-02-24-Near-optimal-key-ranges-for-GAE-mapreduce It uses a custom _split_input_from_namespace() method in a mapreduce.input_readers.DatastoreInputReader subclass 2011/4/8 Dan Dubois <uvico...@gmail.com>: > OK thanks for letting me know. I am certainly looking forward to being able > to map over a subset of entities. It'll make my implementation of > broadcasting using the Channel API much nicer! -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
