Replace cudf::detail::get_value() with cudf::get_element()

[davidwendt]

Replaces calls to libcudf internal cudf::detail::get_value() with public cudf::get_element().

[greptile-apps]

Greptile Summary

This PR replaces two calls to the libcudf internal API cudf::detail::get_value() with the public cudf::get_element() API, removing the dependency on the private <cudf/detail/get_value.cuh> header.

Key changes:

• bloom_filter.cu: Removes unused #include <cudf/detail/get_value.cuh> (no call sites existed in that file) and bumps the copyright year to 2026.
• parse_uri.cu: Swaps the private header for <cudf/copying.hpp> (the correct public header for cudf::get_element()), and replaces the single call site with a properly typed cast through cudf::scalar_type_t<cudf::size_type>. Stream ordering is preserved end-to-end — stream is correctly passed to both cudf::get_element() and the subsequent .value(stream) call, matching the semantics of the original detail API.

Confidence Score: 5/5

• This PR is safe to merge — it is a clean replacement of a private internal API with its public equivalent, with correct stream propagation throughout.
• The change is minimal and mechanically correct. The offsets_column in parse_uri.cu is explicitly typed INT32 via type_to_id<size_type>(), making the static_cast downcast safe. stream is passed to both cudf::get_element() and .value(stream), preserving the original ordering semantics. The bloom_filter.cu change is a pure dead-include removal with no functional impact. No remaining uses of cudf::detail::get_value exist in the repository.
• No files require special attention.

Important Files Changed

Filename	Overview
src/main/cpp/src/bloom_filter.cu	Removed unused #include <cudf/detail/get_value.cuh> (no calls to this API existed in the file) and updated copyright year to 2026; no functional changes.
src/main/cpp/src/parse_uri.cu	Replaces cudf::detail::get_value<size_type>() with public cudf::get_element() + .value(stream). The offsets_column is typed INT32 (created via type_to_id<size_type>()), so the static_cast<cudf::numeric_scalar<int32_t> const&> downcast is safe. Stream is correctly propagated end-to-end to both get_element and .value().

Sequence Diagram

sequenceDiagram
    participant Caller
    participant parse_uri
    participant cudf_get_element as cudf::get_element()
    participant scalar as numeric_scalar<int32_t>
    participant Host

    Caller->>parse_uri: parse_uri(input, chunk, ..., stream, mr)
    parse_uri->>parse_uri: build offsets_column (INT32, stream)
    parse_uri->>parse_uri: exclusive_scan offsets (stream)
    parse_uri->>cudf_get_element: get_element(offsets_view, offset_count-1, stream)
    Note over cudf_get_element: copies last offset element<br/>to device scalar on `stream`
    cudf_get_element-->>parse_uri: unique_ptr<scalar>
    parse_uri->>scalar: static_cast<numeric_scalar<int32_t>>.value(stream)
    Note over scalar: syncs `stream`, copies<br/>value to host
    scalar-->>parse_uri: out_chars_bytes (host int32_t)
    parse_uri->>parse_uri: allocate d_out_chars(out_chars_bytes, stream, mr)
    parse_uri-->>Caller: strings column

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_{Last reviewed commit: b5c0c95}

[mythrocks]

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