Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/12850
Thank you for feedback. I'm really happy with your attention!
For the non-deterministic part, we can add a single condition in
`isAssociativelyFoldable`.
If some of operand of the expression is non-deterministic, the whole
expression is non-deterministic. It's easy.
Also, it's **future-proof**. In the future, although we make
`NondeterministicScalaUDF` whose `deterministic==false`, this optimizer will
not handle the expressions containing it.
---
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.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
