Postgres' HSTORE is as document oriented as Mongo. I have used Mongo plenty and I really don't want to do it again. With its almost-safe writes it's extremely

Postgres' HSTORE is as document oriented as Mongo. I have used Mongo plenty and I really don't want to do it again. With its almost-safe writes it's extremely slow and no simpler to use than Postgres. Also much less flexible, basically a subset of Postgres' data model.