Haas: Built-in Sharding for PostgreSQL

Robert Haas writesabout the sharding capabilities that PostgreSQL will someday have."The capabilities already added are independently useful, but Ibelieve that some time in the next few years we're going to reach a tippingpoint. Indeed, I think in a certain sense we already have. Just a few yearsago, there was serious debate about whether PostgreSQL would ever havebuilt-in sharding. Today, the question is about exactly which features arestill needed."