Where can I read more of datastore_v3 and RunQuery? Because from the appengine-go's datastore package, the query.go source seems to use "datastore_v3" and "RunQuery".
What I was trying to understand is how to use the "Distinct" keyword in Go as mentioned from: https://developers.google.com/appengine/docs/python/datastore/gqlreference
Thank you.