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io: enable native partition-aware arrow scans#3

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abnobdoss wants to merge 1 commit into
aba-158-opt-in-rust-arrow-scanfrom
aba-164-native-partition-metadata-scan
Draft

io: enable native partition-aware arrow scans#3
abnobdoss wants to merge 1 commit into
aba-158-opt-in-rust-arrow-scanfrom
aba-164-native-partition-metadata-scan

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Stack position: Python PR after #2 (ABA-164).

Enables native scan adapter behavior for partition/name-mapping cases now that the Rust ArrowReader schema branch is expected to handle exact schema export.

Validation reported by implementer:

  • python3 -m py_compile pyiceberg/io/pyiceberg_core.py pyiceberg/table/init.py tests/io/test_pyiceberg_core.py
  • uv run pytest tests/io/test_pyiceberg_core.py -q

Current status: draft, under Codex red-team review. Known red-team focus: whether this PR contains only tests versus actual behavior, and whether Rust schema support is truly sufficient.

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