GitHub user MaxGekk opened a pull request: https://github.com/apache/spark/pull/22929
[SPARK-25927][SQL] Fix number of partitions returned by outputPartitioning ## What changes were proposed in this pull request? In the PR, I propose to make the `outputPartitioning()` method abstract and implement it in child nodes to return actual number of partitions. Currently the method returns 0 partitions by default which is wrong in most cases. ## How was this patch tested? It was tested by SqlQueryTestSuite. You can merge this pull request into a Git repository by running: $ git pull https://github.com/MaxGekk/spark-1 output-partitioning Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/22929.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 #22929 ---- commit c1291848d9443c6ea0dd009a0d107473a30da1a0 Author: Maxim Gekk <max.gekk@...> Date: 2018-11-02T08:41:09Z Fix number partitions returned by outputPartitioning commit 25f57f92bfcf28b1b29d75dde75fc2dd358488cb Author: Maxim Gekk <max.gekk@...> Date: 2018-11-02T09:59:54Z Fix number of partitions for union commit 4484b242af756b0afd7f0e947512e72069e175ee Author: Maxim Gekk <max.gekk@...> Date: 2018-11-02T10:14:37Z Replacing def by lazy val ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org