On Fri, Aug 5, 2011 at 11:45 AM, William Levesque <billleves...@gmail.com> wrote: > > But is Google's position that all data should be denormalized?
I don't think anyone would say that. I wrote up my thoughts around this subject here: http://blog.similarity.com/post/7541938593/how-to-build-an-online-dating-site-nosql-edition The upshot is that we've been conditioned by SQL theorists to believe that there is a "proper" way of modeling data; that the data itself defines the schema and the magic of the RDBMS behind the curtain makes it fast. Unfortunately, this is a lie. It worked to a point but the traffic demands of a mass consumer application have vastly outstripped the RDBMS. You're back to figuring out how to optimize your schema for your particular query profile. So the answer is not "denormalize everything", it's "denormalize the right things". And "the right things" will vary from application to application. You just have to build up a correct mental model of how the datastore performs and then design your application accordingly. Jeff -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
