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libcudf
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… add optional table indices
Reconcile source-type reflection and table mappings with core device-view accessors. Preserve decoded dictionary and string UDF value types, and normalize default column indices to the accessor's int32_t type. Add regression coverage for equivalent mappings, invalid mappings, CUDA/PTX/LTO type selection, UDF signatures, and storage-derived specs.
Keep four-parameter kernel accessors and mutable string outputs while aligning precompiled fragment names with signed runtime indices. Verify all 61 precompiled fixed-width and string configurations against runtime reflection to prevent silent fallback to JIT compilation.
… includes Remove JIT reflection test and associated configurations
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Transform reflection and output-storage wrappers currently live inside `transform.cu.` They have been moved into another header to allow them to be reused for other JIT implementations like `filter_join_indices` and `reduce` (#24445 ) Follow-up PRs: - #24766 - #24767 Both are stacked on this PR Authors: - Basit Ayantunde (https://github.com/lamarrr) Approvers: - Muhammad Haseeb (https://github.com/mhaseeb123) - Yunsong Wang (https://github.com/PointKernel) URL: #24425
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Allow CUDA transforms to consume lists with fixed-width children, including dictionary-encoded list keys, and produce fixed-width lists using caller-supplied INT32 offsets. Add list_element and mutable_list_element, nested output specifications, list allocation/finalization, and output-offset validation.
Cover dictionary keys, scalar/sliced inputs, Decimal128 children, parent and child validity, empty/all-null inputs, a size-scan-write workflow, mixed outputs, and unsupported-child rejection in eleven new integration tests. Update the pylibcudf declaration of transform_output.
This PR is based on the string/representation-access migration. Nested lists and string children remain rejected by the transform API.
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PR stack
Depends on #24425 and #24766. This draft targets
main, so its PR diff includes those prerequisites until they merge. The changes specific to this part are in commit4984f7207db7c52054aef595629085ed72ac19edand this comparison.Checklist