sum, max 등 group by 를 이용한 결과를 표현할 때 a.py q = session.query( included_parts.c.sub_part, func.sum(included_parts.c.quantity).label('total_quantity') ).\ group_by(included_parts.c.sub_part)a.html {% for record in records %} {{ loop.index }} {{ record.included_parts.c.sub_part}} {{ record.total_quantity}} {% endfor %} 참조 : http://docs.sqlalchemy.org/en/rel_0_7/orm/query.html