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From dafrista <>
Subject [GitHub] spark pull request #13676: [SPARK-15956] [SQL] When unwrapping ORC avoid pat...
Date Wed, 15 Jun 2016 00:43:39 GMT
GitHub user dafrista opened a pull request:

    [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:
    ![screen shot 2016-06-14 at 5 33 16 pm](
    ![screen shot 2016-06-14 at 5 33 28 pm](

You can merge this pull request into a Git repository by running:

    $ git pull improve-orc-master

Alternatively you can review and apply these changes as the patch at:

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
commit bdd188546c6043b694e2b1e023a4e78f1e5fffdb
Author: Brian Cho <>
Date:   2016-06-13T20:36:17Z

    Avoid pattern matching in runtime when unwrapping ORC.


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