GitHub user dafrista opened a pull request:
https://github.com/apache/spark/pull/13676
[SPARK-15956] [SQL] When unwrapping ORC avoid pattern matching at runtime
## What changes were proposed in this pull request?
Extend the returning of unwrapper functions from primitive types to all
types.
## How was this patch tested?
The patch should pass all unit tests. Reading ORC files with non-primitive
types with this change reduced the read time by ~15%.
===
The github diff is very noisy. Attaching the screenshots below for improved
readability:
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dafrista/spark improve-orc-master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13676.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 #13676
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commit bdd188546c6043b694e2b1e023a4e78f1e5fffdb
Author: Brian Cho <[email protected]>
Date: 2016-06-13T20:36:17Z
Avoid pattern matching in runtime when unwrapping ORC.
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