I am running the Dremio CE 4.1.4, and when I was querying for all reflections, I found a column named DistribuitionColumns, but I didn’t find anything on the docs. I am familiar with the concept of partitionColumn.
I found this using this query:
SELECT distributionColumns FROM sys.reflections
It returned NULL for all reflections.
Is this feature already on production? How does it work?