Probably just because it is not used that often and nobody has submitted a patch for it. I've used pivot probably on average once a week (primarily in spreadsheets), but I've never used unpivot ...
On Tue, Aug 21, 2018 at 3:06 PM Ivan Gozali <i...@lecida.com> wrote: > Hi there, > > I was looking into why the UNPIVOT feature isn't implemented, given that > Spark already has PIVOT implemented natively in the DataFrame/Dataset API. > > Came across this JIRA <https://issues.apache.org/jira/browse/SPARK-8992> which > talks about implementing PIVOT in Spark 1.6, but no mention whatsoever > regarding UNPIVOT, even though the JIRA curiously references a blog post > that talks about both PIVOT and UNPIVOT :) > > Is this because UNPIVOT is just simply generating multiple slim tables by > selecting each column, and making a union out of all of them? > > Thank you! > > -- > Regards, > > > Ivan Gozali > Lecida > Email: i...@lecida.com >
