Refer to http://code.google.com/appengine/docs/python/datastore/gqlreference.html
As I understood, They use multiple queries behind the scenes. And it ( Official doc ) stated that we should make sure our query should not use more than 30 sub queries behind the scenes. Hope the link helps you. On Dec 10, 6:48 pm, Andy Freeman <[email protected]> wrote: > I know that both "IN" and "!=" queries are implemented with multiple > queries. > > Are those multiple queries executed in the datastore or in the > application? > > I'm interested in whether an IN query is has less latency than the > corresponding sequence of queries. (For my specific application, the > sequence is more convenient and requires no de-duping, but if IN has > less latency, I'll use it.) > > ps - This should be documented somewhere.... > > Thanks, > -andy -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. 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.
