#!/usr/bin/env ruby

require File.join(File.dirname(__FILE__), '_common.rb')
db = Mongo.new(DEFAULT_HOST, DEFAULT_PORT).db(DEFAULT_DB)

if $DEBUG
  db.drop_collection('c')
  c = db.collection('c')
  (5..15).each { |i| c.insert(:x => 0, :y => i, :z => (i+64).chr) }
  (1..50).each { |i| c.insert(:x => 1, :y => i, :z => (i+64).chr) }
  (5..15).each { |i| c.insert(:x => 2, :y => i, :z => (i+64).chr) }
end

cursor = db.collection('c').find({'x' => 1}, :sort => 'y', :offset => 20, :limit => 10)
cursor.each { |row| puts row['z'] }