# File tokyotyrant.rb, line 1421
    def metasearch(others, type = MSUNION)
      raise ArgumentError if !others.is_a?(Array)
      args = @args.dup
      others.each do |other|
        next if !other.is_a?(RDBQRY)
        args.push("next")
        other._args.each do |arg|
          args.push(arg)
        end
      end
      args.push("mstype\0" + type.to_s)
      @hint = ""
      rv = @rdb.misc("metasearch", args, RDB::MONOULOG)
      return Array::new if !rv
      _popmeta(rv)
      return rv
    end