Describe the bug
@phillipleblanc and @itsjunetime have both hit upgrades related to nullability and other metadata in schemas after the DataFusion 42 upgrade.
In addition, @ion-elgreco has it something similar while updating in delta.rs (see delta-io/delta-rs#2886)
I am filing this ticket to make this more visibility
To Reproduce
Not sure (maybe someone could create a self contained reproducer of the problem)
Expected behavior
No response
Additional context
This might have been introduced here: #11989
There is a discussion happening here #11989 (comment)