Github user koertkuipers commented on the pull request: https://github.com/apache/spark/pull/13012#issuecomment-218053856 blackbox transformations infer nullable=false when you return a primitive. for example: ``` scala> sc.parallelize(List(1,2,3)).toDS.map(i => i * 2).schema res0: org.apache.spark.sql.types.StructType = StructType(StructField(value,IntegerType,false)) ``` why would aggregator be any different?
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org