The Datastore team is aware of this request and is currently looking into it. You can use this issue tracker[1] to track the progress of that feature request. Please note that feature requests are not guaranteed to fulfilled and there is no ETA on them.
[1] https://issuetracker.google.com/115872913 -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/b9400f47-5c52-4b65-87bc-b3de40bf2442%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
