GitHub user cloud-fan opened a pull request: https://github.com/apache/spark/pull/20483
[SPARK-23312][SQL] add a config to turn off vectorized cache reader ## What changes were proposed in this pull request? https://issues.apache.org/jira/browse/SPARK-23309 reported a performance regression about cached table in Spark 2.3. While the investigating is still going on, this PR adds a conf to turn off the vectorized cache reader, to unblock the 2.3 release. ## How was this patch tested? a new test You can merge this pull request into a Git repository by running: $ git pull https://github.com/cloud-fan/spark cache Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/20483.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 #20483 ---- commit 376c85526f4ec2328f2d05a0816f632c7dd9379f Author: Wenchen Fan <wenchen@...> Date: 2018-02-02T05:55:01Z add a config to turn off vectorized cache reader ---- --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org