gistfile1.txt

require 'mongo'

mongo = Mongo::Connection.new
db = mongo.db('test')
collection = db.collection('helloworld')
collection.remove
collection.insert({:x => 3})
collection.insert({:x => 2})
collection.insert({:x => 5})

OPTIONS = {:sort => :x}

3.times do
  p collection.find({}, OPTIONS).to_a.map { |d| d['x'] }
end