GitHub user windpiger opened a pull request: https://github.com/apache/spark/pull/16700
[SPARK-19359][SQL]clear useless path after rename a partition with upper-case by HiveExternalCatalog ## What changes were proposed in this pull request? Hive metastore is not case preserving and keep partition columns with lower case names. If SparkSQL create a table with upper-case partion name use HiveExternalCatalog, when we rename partition, it first call the HiveClient to renamePartition, which will create a new lower case partition path, then SparkSql rename the lower case path to the upper-case. while if the renamed partition contains more than one depth partition ,e.g. A=1/B=2, hive renamePartition change to a=1/b=2, then SparkSql rename it to A=1/B=2, but the a=1 still exists in the filesystem, we should also delete it. ## How was this patch tested? unit test added You can merge this pull request into a Git repository by running: $ git pull https://github.com/windpiger/spark clearUselessPathAfterRenamPartition Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/16700.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 #16700 ---- commit 6a8efddfb44f3f72c15ff6c20cd6ce341bec6da7 Author: windpiger <song...@outlook.com> Date: 2017-01-25T07:44:20Z [SPARK-19359][SQL]clear useless path after rename a partition with upper-case in HiveExternalCatalog commit 878d45eb81ad9b1b5486689a527c0c2cdfe81b81 Author: windpiger <song...@outlook.com> Date: 2017-01-25T07:51:07Z reset a tc ---- --- 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