# File lib/active_record/vendor/mysql411.rb, line 163
  def change_user(user="", passwd="", db="")
    scrambled_password = version_meets_minimum?( 4, 1, 1 ) ? scramble411( passwd, @scramble_buff, @protocol_version==9 ) : scramble( passwd, @scramble_buff, @protocol_version==9 )
    data = user+"\0"+scrambled_password+"\0"+db
    command COM_CHANGE_USER, data
    @user = user
    @passwd = passwd
    @db = db
  end