GitHub user raofu opened a pull request: https://github.com/apache/spark/pull/22113
[SPARK-25126] Lazily create Reader for orc files ## What changes were proposed in this pull request? Currently Reader is created for every orc file under the directory and then the first one with non-empty schema is returned. Using `view` lazily creates Reader instead. ## How was this patch tested? (Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests) (If this patch involves UI changes, please attach a screenshot; otherwise, remove this) Please review http://spark.apache.org/contributing.html before opening a pull request. You can merge this pull request into a Git repository by running: $ git pull https://github.com/raofu/spark SPARK-25126 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/22113.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 #22113 ---- commit 9f5aad0591b9912f5186cd2da8328b348eea5425 Author: Rao Fu <rao@...> Date: 2018-08-15T20:20:45Z [SPARK-25126] Lazily create Reader for orc files ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org