GitHub user ueshin opened a pull request:
https://github.com/apache/spark/pull/17911
[SPARK-20668][SQL] Modify ScalaUDF to handle nullability.
## What changes were proposed in this pull request?
When registering Scala UDF, we can know if the udf will return nullable
value or not. `ScalaUDF` and related classes should handle the nullability.
## How was this patch tested?
Existing tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ueshin/apache-spark issues/SPARK-20668
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17911.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 #17911
----
commit 120c862bada2e8a574f29ea4eb4434a528d59b3b
Author: Takuya UESHIN <ues...@databricks.com>
Date: 2017-05-05T04:17:18Z
Modify ScalaUDF to handle nullability.
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
