Mongodb聚合框架中是否有底层函数？ [英] Is there a floor function in Mongodb aggregation framework?

问题描述

我尝试在mongodb中做一些整数数学并遇到一些问题。有没有办法在mongo db聚合框架中向上或向下舍入双打？

I try to do some integer math in mongodb and have some problems. Is there a way to round doubles up or down in the mongo db aggregation framework?

推荐答案

根据Stennie的评论，不支持地板和天花板方法。

As per the comment from Stennie, the floor and ceiling methods are not supported.

根据我上面的评论，我能找到的最佳解决方案就是做一个看起来像这样的操作：（num-mod （num，1）），它应该产生与floor函数相同的结果。

And as per my comment above, the best solution that I could find was just doing an operation that looks like: (num-mod(num,1)) which should yield the same result as the floor function.

这篇关于Mongodb聚合框架中是否有底层函数？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！