# File lib/kirbybase.rb, line 780
    def init_recno_index(table)
        return if recno_index_exists?(table)

        with_write_locked_table(table) do |fptr|
            @recno_indexes[table.name] = KBRecnoIndex.new(table)
            @recno_indexes[table.name].rebuild(fptr)
        end
    end