I'm using the Go 1.9.37 SDK with App Engine Classic (in case that matters to the answer).
I have some entities of type "user", which have one or more unique email addresses associated with each entity. Given a list of email addresses, I would like to look up some simple data from the entities which correspond to an email address, and mark the email addresses which don't have a corresponding entity as invalid. I have the email addresses indexed in the entity. Is there a way of batch querying the datastore in a single API request to get the first key (there will be only one) which corresponds to each email address? I was thinking of something similar to the way there can be a batch get (via GetMulti) once one already has the keys? I would appreciate any suggestions on the most efficient way of doing this, as right now I'm stuck with a lot of single KeysOnly queries (one for each email address), and then a single GetMulti to get all the entities that I want. -- 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 google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. 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/52ba51c9-dd4f-4a9a-ae7e-ca5304167b28%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
