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
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