GitHub user hvanhovell opened a pull request: https://github.com/apache/spark/pull/16886
[SPARK-19548][SQL] Support Hive UDFs which return typed Lists/Maps ## What changes were proposed in this pull request? This PR adds support for Hive UDFs that return fully typed java Lists or Maps, for example `List<String>` or `Map<String, Integer>`. It is also allowed to nest these structures, for example `Map<String, List<Integer>>`. Raw collections or collections using wildcards are still not supported, and cannot be supported due to the lack of type information. ## How was this patch tested? Modified existing tests in `HiveUDFSuite`, and I have added test cases for raw collection and collection using wildcards. You can merge this pull request into a Git repository by running: $ git pull https://github.com/hvanhovell/spark SPARK-19548 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/16886.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 #16886 ---- commit 56cdabdd0d19d6a07229202e939c8bd5beef4b12 Author: Herman van Hovell <hvanhov...@databricks.com> Date: 2017-02-10T11:21:02Z Support Hive UDFs which return typed Lists/Maps ---- --- 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