Hi Tug, Let's say your UDF returns an int, your @output field will be defined like this:
@Output NullableIntHolder out; To return a NULL you just have to set: out.isSet = 0; Thanks On Tue, Oct 6, 2015 at 1:56 AM, Tugdual Grall <[email protected]> wrote: > Hello Drillers, > > I am developing a custom function and I would like to return NULL (based on > the value, for example if the varchar is '' I want my function to return > NULL) > > I have not found the way to do it. > > > Regards > Tug > @tgrall > -- Abdelhakim Deneche Software Engineer <http://www.mapr.com/> Now Available - Free Hadoop On-Demand Training <http://www.mapr.com/training?utm_source=Email&utm_medium=Signature&utm_campaign=Free%20available>
