Vectorized ORC Reader is now supported in Apache Spark 2.3. https://issues.apache.org/jira/browse/SPARK-16060
It has been a long journey. From now, Spark can read ORC files faster
without feature penalty.
Thank you for all your support, especially Wenchen Fan.
It's done by two commits.
[SPARK-16060][SQL] Support Vectorized ORC Reader https://github.com/apache/spark/commit/f44ba910f58083458e1133502e193a
[SPARK-16060][SQL][FOLLOW-UP] add a wrapper solution for vectorized orc
Please check OrcReadBenchmark for the final speed-up from `Hive built-in
ORC` to `Native ORC Vectorized`. https://github.com/apache/spark/blob/master/sql/hive/