[Feature Request]: support other agg function for over()

[LiSong0214]

Is there an existing issue for the same feature request?

• [X] I have checked the existing issues.

Is your feature request related to a problem?

No response

Describe the feature you'd like

MO 支持的多参数聚合函数，目前只有 GROUP_CONCAT 是

Describe implementation you've considered

No response

Documentation, Adoption, Use Case, Migration Strategy

No response

Additional information

No response