Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/11050#issuecomment-179391285
I'd have to search for it as it was a while ago, you should be able to
trigger it by forcing the analyzer to generate a column while referencing a
column with the same name.
I wasn't referring to the `resolved` property of an `Expression`, but
instead the [`resolve`
function](https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala#L178)
on a `LogicalPlan`. This should probably never return attributes that are
generated.
---
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]
