GitHub user rxin opened a pull request: https://github.com/apache/spark/pull/18256
[SPARK-21042][SQL] Document Dataset.union is resolution by position ## What changes were proposed in this pull request? Document Dataset.union is resolution by position, not by name, since this has been a confusing point for a lot of users. ## How was this patch tested? N/A - doc only change. You can merge this pull request into a Git repository by running: $ git pull https://github.com/rxin/spark SPARK-21042 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/18256.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #18256 ---- ---- --- 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