Couch has a much shorter list of operations. Really only get, put, delete, and whatever you can cook up yourself with mapreduce. Rethink has ad-hoc live queries

Couch has a much shorter list of operations. Really only get, put, delete, and whatever you can cook up yourself with mapreduce. Rethink has ad-hoc live queries and joins. I don't think Rethink has a tailable update log in the way Couch does.