There is one built into EventMachine. (https://github.com/eventmachine/eventmachine/blob/master/lib/em/protocols/postgres3.rb https://github.com/eventmachine/ev

There is one built into EventMachine. (https://github.com/eventmachine/eventmachine/blob/master/lib/em/protocols/postgres3.rb https://github.com/eventmachine/eventmachine/blob/master/lib...). Never used it, so I can't say if it's good or not.