What is the difference between Partitioning and GROUP BY?
Unlike grouping, partitioning is specific to one function's window and can be different for different functions in the same query.

https://www.interviewquestionspdf.com/2016/12/what-is-difference-between-partitioning.html
Unlike grouping, partitioning is specific to one function's window and can be different for different functions in the same query.