Upgrade to DataFusion 46

[phillipleblanc]

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[Copilot]

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (3)

core/tests/integration.rs:5

• Ensure that gating the duckdb tests with both 'duckdb' and 'federation' features is intentional, as this change may prevent tests from running in configurations where only 'duckdb' is enabled.

#[cfg(all(feature = "duckdb", feature = "federation"))]

core/src/flight/exec.rs:199

• Verify that switching from last() to next_back() produces the intended error selection behavior, as the ordering between these methods might differ when multiple errors are present.

let err = errors.into_iter().next_back().unwrap_or_else(|| {

core/src/duckdb.rs:788

• Confirm that 'table_name' is already of the required type for CreateExternalTable; if not, the removal of '.into()' could lead to type mismatch issues in the future.

name: table_name,