GitHub user viirya opened a pull request: https://github.com/apache/spark/pull/20984
[SPARK-23875][SQL] Add IndexedSeq wrapper for ArrayData ## What changes were proposed in this pull request? We don't have a good way to sequentially access `UnsafeArrayData` with a common interface such as `Seq`. An example is `MapObject` where we need to access several sequence collection types together. But `UnsafeArrayData` doesn't implement `ArrayData.array`. Calling `toArray` will copy the entire array. We can provide an `IndexedSeq` wrapper for `ArrayData`, so we can avoid copying the entire array. ## How was this patch tested? TBD. You can merge this pull request into a Git repository by running: $ git pull https://github.com/viirya/spark-1 SPARK-23875 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/20984.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 #20984 ---- commit 27eddd764bc60f9f41156c3548e98e6aea68fd02 Author: Liang-Chi Hsieh <viirya@...> Date: 2018-04-05T14:33:39Z Add IndexedSeq wrapper for ArrayData. ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org