GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/20265
[SPARK-21783][SQL] Turn on ORC filter push-down by default
## What changes were proposed in this pull request?
ORC filter push-down is disabled by default from the beginning, SPARK-2883
Now, Apache Spark starts to depend on Apache ORC 1.4.1. For Apache Spark
2.3, this PR turns on ORC filter push-down by default like Parquet (SPARK-9207)
as a part of SPARK-20901, "Feature parity for ORC with Parquet".
## How was this patch tested?
Pass the existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-21783
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20265.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 #20265
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commit dda5bdf6865018613eeb98c6acbdd39ab2459c87
Author: Dongjoon Hyun <dongjoon@...>
Date: 2018-01-14T08:20:11Z
[SPARK-21783][SQL] Turn on ORC filter push-down by default
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