打破它,你可以实现这一目标
1-根据先前的非空股票行[组]计算对行进行分组的列
last(case when [Stocks] is not null then [Date] end) OVER (allPrevious([Date]))
2-创建包含分组和日期的层次结构[Gp_Date_Hr]
CREATE NESTED HIERARCHY [Gp_Date_Hr]
[Group] AS [Group],
[Date] AS [Date]
3-计算您想要的值
Sum([Volume]) OVER (Intersect(Parent([Hierarchy.Gp_Date_Hr]),AllPrevious([Hierarchy.Gp_Date_Hr])))