Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/482#issuecomment-41236071
I like the option of doing it similar to BooleanSimplification. That seems
nice and explicit. I also think this rule will play nicely with more general
constraint propagation when we add that in the future.
---
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 [email protected] or file a JIRA ticket
with INFRA.
---
