Is that what we're calling this whole 30 lines of javascript, mongo and redis behind the WAN, dynamic language runtime inside the DB era?
Cool.
EDIT: saying that, some kind of featureful document store implementation inside postgres seems inevitable. Isn't that all going to be hstore-based though, what with the new stuff coming in 9.4? I thought the json type was meant to be kind of a stopgap until the full hstore functionality is finished, ie. nesting?