GitHub user srowen opened a pull request:
https://github.com/apache/spark/pull/22259
[WIP][SPARK-25044][SQL] (take 2) Address translation of LMF closure
primitive args to Object in Scala 2.12
## What changes were proposed in this pull request?
Alternative take on https://github.com/apache/spark/pull/22063 that does
not introduce udfInternal.
Resolve issue with inferring func types in 2.12 by instead using info
captured when UDF is registered -- capturing which types are nullable (i.e. not
primitive)
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/srowen/spark SPARK-25044.2
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22259.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 #22259
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commit d99cfa6c8788d782840dae140c15047af924b3a0
Author: Sean Owen <sean.owen@...>
Date: 2018-08-28T14:22:33Z
Update UDF support to handle nullability correctly in Scala 2.12
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