http://instagram-engineering.tumblr.com/post/10853187575/sharding-ids-at-instagram http://instagram-engineering.tumblr.com/post/10853187575/sha... it certainly

http://instagram-engineering.tumblr.com/post/10853187575/sharding-ids-at-instagram http://instagram-engineering.tumblr.com/post/10853187575/sha... it certainly can be done with postgres, but isn't as simple.