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Potential regression in Schema / nullability calculations after upgrade to 42.0.0 #12560

@alamb

Description

@alamb

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)

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