gistfile1.js

(collection)
  ('result1', db.query('SELECT 1'))
  ('result2', db.query('SELECT 2'))
  ('result3', db.query('SELECT 3'))
  .addCallback(function() {
    p(results); // == {result1: result1, result2: result2, result3: result}
  });
  .addErrback(function() {
   // If anything goes wrong in this chain, catch it here!
  });