# File lib/tapkit/access/sql.rb, line 357
                def add_select_list( attribute, as = nil, grouping = false )
                        column = sql_for_attribute attribute
                        item   = format_sql_string(column, attribute.read_format)
                        @group_by_string = item.dup if grouping
                        item << " #{as}" if as
                        append_item item
                end