[coffeemug]

slava @ rethink here. I don't think we disagree -- optimizers are unquestionably a good idea and are immensely useful. For us it was a matter of a) giving people the option to specify indexes directly, and b) shipping quickly. We'll implement a proper statistical optimizer in due time, but for the time being we found that the explicit approach gives a lot of people 80% of what they need with 20% of the work on our part.