Amazon boss snubs 'expensive', 'sub-optimal' relational databases. Here's looking at you, Larry

Also in letter to shareholders, Cargo Jeff admits Echo is a bit creepy: 'A black, always-on cylinder in your kitchen...'
Amazon CEO Jeff Bezos has used his annual shareholders letter to throw shade at legacy database rivals, saying that while no one asked for AWS, businesses were sick of lock-in and punitive licensing deals.…