hi andy! the queries described that don't need indices are disjoint. queries that combine features from more than one of them will usually still need an index.
in your case, WHERE user = :user ORDER BY created_at has both an equals filter *and* a sort order, so it needs an index. in general, all queries that involve multiple properties or an ancestor will need indices, except if all properties are only used in equals filters and there are no sort orders. as for the ORDER BY created_at ASC query, i ran that query in http://shell.appspot.com/, running in a local dev_appserver - code below - and it didn't generate an index in index.yaml for me. >>> class Foo(db.Model): pass >>> print list(Foo.gql('ORDER BY created_at ASC')) [] --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
