Construct a query in LINQ...then see if the resulting SQL that it generates is similar to the way you'd code it with your own SQL statement.I haven't tried. Are you saying (again) that the query isn't particularly efficient in the current CTP?
Well, efficiency either will or will not improve as the product becomes live. IMHO some developers won't care, just as some don't care today about the inefficiencies caused by sending back all data to the server every time rather than using change tracking that's available for free.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1