The built-in datastore admin tool is excellent - see http://neogregious.blogspot.com/2011/04/migrating-app-to-high-replication.html for a discussion of data transfer options.
It won't do schema changes or data subsets, but knowing what I know now I'd change the schema (see http://groups.google.com/group/google-appengine/browse_thread/thread/9ae4c6fc3ca5acc0/520c294137bc8dbf) and delete the unwanted entities in place, then use the datastore admin tool. This keeps your keys, IDs and indexes correct. Cheers Greg. -- 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.
