[tmeasday]

Fair question. Obviously that recommendation was supposed to be taken alongside the other recommendations about not touching too many records, so, yeah 'SELECT *' is probably not good.

What I meant here is thinking about making your publication queries simpler when designing your data models.

For instance, sometimes using denormalization you can use a simple equality selector rather than some more complex mongo selector. Mongo makes it possible to avoid the denormalization, but it might bite you as it means Meteor can't do a bunch of short-circuits that it might otherwise do on a simpler query.