Github user felixcheung commented on the issue:
https://github.com/apache/spark/pull/18737
It's a breaking change, but IMO one we need since we have quite a bit of
feedback on this.
re: test failure
```
java.lang.IllegalArgumentException: Field "Sepal_Length" does not exist.
```
that's expected since the column would be named `Sepal.Length` instead.
There is likely a fair number of subtle changes (including doc, vignettes)
we need to update
---
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
