More from the Pat Helland back catalogue. This one, The End of an Architectural Era (It’s Time for a Complete Rewrite) argues that SQL (relational) databases no longer come close to representing the needs of modern computer hardware or users.
I tend to agree, although the paper is selling their own solution. With that said the 82x speedup cited is quite compelling and we’ve seen the rise of NoSQL pretty-much backing this up. The early reasoning in the paper is probably the most interesting part though.