Re: Custom Window Function

2019-01-25 Thread Georg Heiler
Hi, https://stackoverflow.com/questions/32100973/how-to-define-and-use-a-user-defined-aggregate-function-in-spark-sql has a good overview and the best sample I have found so far. (besides spark source code). Best, Georg Am Mi., 23. Jan. 2019 um 17:16 Uhr schrieb Georg Heiler < georg.kf.hei...@gm

Re: Custom Window Function

2019-01-23 Thread Georg Heiler
Hi Herman, Thanks a lot. So far I only found most of the documentation about UDAF. Could you point me anywhere (besides just reading spark's source code) which explains how to work with custom AggregateFunctions? Best, Georg Am Mi., 23. Jan. 2019 um 16:02 Uhr schrieb Herman van Hovell < her...@d