django orm和postgresql的累积（运行）总和

从Dima
Kudosh的答案中并基于https://stackoverflow.com/a/5700744/2240489，我必须执行以下操作：我

PARTITIONBY

ORDER BY

AModel.objects.annotate(    cumsum=Func(        Sum('a_number'),         template='%(expressions)s OVER (ORDER BY %(order_by)s)',         order_by="id"    ) ).values('id', 'cumsum').order_by('id', 'cumsum')

这给出了以下sql：

SELECt "amodel"."id",SUM("amodel"."a_number") OVER (ORDER BY id) AS "cumsum" FROM "amodel" GROUP BY "amodel"."id" ORDER BY "amodel"."id" ASC, "cumsum" ASC

Dima Kudosh的答案不是对结果求和，但以上结果可以。