bug: Describe fails when schema has FixedBinarySize columns

Describe the bug

When using describe method on dataframe, the operation fails with the following error:

Arrow error: Cast error: Casting from FixedSizeBinary(16) to Utf8 not supported

This looks like a straightforward bug fix since explain works just fine and this is probably just a missing case.

To Reproduce

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Expected behavior

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Additional context

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I would love to send a PR over if this is indeed a bug :)

It seems like this is a limitation of the underlying arrow library rather than an issue with DataFusion itself.

I worked on this and have a local fix ready (with a regression test).
I’ll open a PR as soon as I can push from my fork.

take

fix(dataframe): handle FixedSizeBinary in describe

resolved by

fix: render binary columns as hex in DataFrame::describe() #21728

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bug: Describe fails when schema has FixedBinarySize columns #20273

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bug: Describe fails when schema has FixedBinarySize columns #20273

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jay-dee7 commented on Feb 10, 2026

Acfboy commented on Feb 12, 2026

yash27-lab commented on Feb 13, 2026

officialasishkumar commented on Apr 8, 2026

Jefffrey commented on Jun 3, 2026

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