Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/13971
Hi, @rxin . Thank you for review. I updated the followings.
- Add function descriptions for `explode` and `posexplode`.
- Add examples in comments.
- Change indentation to make the fields clearer.
For the `explode` and `posexplode` expressions, it seems that we don't have
unit tests in `expression` level because they are generators.
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