code: function (callback) {
          self.client.query(sql, function (err, result) {
            if (err) {
              if (err.indexOf('Couldn\'t find series: ') > -1)
                result = []; //allow this error to fly
              else
                return callback(err);
            }
  
            results.push(result);
            return callback(null);
          });
        }
docs: if (queryPlan.$limit && queryPlan.$limit > 0) sql += ' limit ' + queryPlan.$limit; console.log(sql);