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Include "outer nullability" when we format column datatypes#11339

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Wumpf merged 6 commits intomainfrom
emilk/show-outer-nullability
Sep 26, 2025
Merged

Include "outer nullability" when we format column datatypes#11339
Wumpf merged 6 commits intomainfrom
emilk/show-outer-nullability

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@emilk emilk commented Sep 25, 2025

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We should be consistent and explicit when we format our datatypes - what can be nullable, and what cannot?

Most visibly, this will affect how dataframes are printed in our Python SDK.

I also discovered a bunch of places where we could be using the nice syntax-highlighting of re_arrow_ui but aren't (yet). I marked those as TODO(#11071).

This PR also surfaced a lack of snapshot testing: I would have expected to need to update some ui snapshot images but… no :/

@emilk emilk added sdk-python Python logging API 🧑‍💻 dev experience developer experience (excluding CI) include in changelog labels Sep 25, 2025
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@Wumpf Wumpf self-requested a review September 26, 2025 11:10
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lgtm!

@Wumpf Wumpf merged commit 9869eae into main Sep 26, 2025
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@Wumpf Wumpf deleted the emilk/show-outer-nullability branch September 26, 2025 11:11
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