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VL] Fix host to GPU conversion in CudfVectorStream - #13067

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ReemaAlzaid wants to merge 1 commit into
apache:mainfrom
ReemaAlzaid:fix/cudf-vector-stream-host-upload
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ReemaAlzaid wants to merge 1 commit into
apache:mainfrom
ReemaAlzaid:fix/cudf-vector-stream-host-upload

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@ReemaAlzaid

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What changes are proposed in this pull request?

CudfVectorStream now uploads host batches from broadcast or shuffle boundaries before passing them to GPU operators. It also handles extra broadcast columns and zero column batches.

This fixes the CudfTopN failures in TPC-H q3, q10, and q18.

How was this patch tested?

All three queries passed with CPU fallback disabled and cuDF table scanning enabled

Was this patch authored or co-authored using generative AI tooling?

@github-actions github-actions Bot added the VELOX label Sep 20, 2026
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