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Move ListLikeArray to arrow-array to be shared with json writer and parquet unshredding#9437

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liamzwbao:issue-9340-list-like-array-refactor
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Move ListLikeArray to arrow-array to be shared with json writer and parquet unshredding#9437
liamzwbao wants to merge 1 commit intoapache:mainfrom
liamzwbao:issue-9340-list-like-array-refactor

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@liamzwbao liamzwbao commented Feb 19, 2026

Which issue does this PR close?

Rationale for this change

Json writers for ListLike types (List/ListView/FixedSizeList) are pretty similar apart from the element range representation. We already had a good way to abstract this kind of encoder in parquet variant unshredding. Given this, it would be good to move this ListLikeArray trait to arrow-array to be shared with json/parquet

What changes are included in this PR?

Move ListLikeArray trait from parquet-variant-compute to arrow-array

Are these changes tested?

Covered by existing tests

Are there any user-facing changes?

New pub trait in arrow-array

@liamzwbao liamzwbao marked this pull request as ready for review February 19, 2026 03:01
@github-actions github-actions bot added arrow Changes to the arrow crate parquet-variant parquet-variant* crates labels Feb 19, 2026
@liamzwbao liamzwbao changed the title Move ListLikeArray to arrow-array to be shared with json writer and… Move ListLikeArray to arrow-array to be shared with json writer and parquet unshredding Feb 19, 2026
@liamzwbao liamzwbao force-pushed the issue-9340-list-like-array-refactor branch from 7cc2313 to 419c537 Compare February 19, 2026 03:03
@liamzwbao liamzwbao force-pushed the issue-9340-list-like-array-refactor branch from 419c537 to 04680b1 Compare February 19, 2026 03:22
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