GitHub user maropu opened a pull request:
https://github.com/apache/spark/pull/16707
[SPARK-19338][SQL] Add UDF names in explain
## What changes were proposed in this pull request?
This pr added a variable for a UDF name in `ScalaUDF`.
Then, if the variable filled, `DataFrame#explain` prints the name.
## How was this patch tested?
Added a test in `UDFSuite`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/maropu/spark SPARK-19338
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16707.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 #16707
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commit 1b705611925eefb30fbf5483ce1b976958192b01
Author: Takeshi YAMAMURO <[email protected]>
Date: 2017-01-24T15:21:07Z
Add UDF names in explain
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