The Instagram guys said they didn't actually bench using a UUID + created_at column when they spoke at SFPUG, they just used their approach because it was recom

The Instagram guys said they didn't actually bench using a UUID + created_at column when they spoke at SFPUG, they just used their approach because it was recommended to them and seemed to work. That said, it is a pretty awesome robust mechanism, it's just arguably complex and not proven to be necessary even at their scale.