We don't currently support user-defined analytics. They are similar to aggregate functions but would need a few additions to make them work.
On Mon., 26 Aug. 2019, 18:15 程亚楠, <chengyanan1...@foxmail.com> wrote: > Hello Everyone: > When I use c++ to develop my own Impala-UDAFs，how can I do to make my own > Impala-UDAFs support the OVER analytic function > such as: > select myudaf(column1,column2) over(partition by column1 order by column2) > from mytable; > > > Thank you for taking the time to read my letter!
