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…row_metadata, version, row Expose upstream DataFusion scalar functions that were not yet available in the Python API. Closes apache#1453. - get_field: extracts a field from a struct or map by name - union_extract: extracts a value from a union type by field name - union_tag: returns the active field name of a union type - arrow_metadata: returns Arrow field metadata (all or by key) - version: returns the DataFusion version string - row: alias for the struct constructor Note: arrow_try_cast was listed in the issue but does not exist in DataFusion 53, so it is not included. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Tests for get_field, arrow_metadata, version, row, union_tag, and union_extract. Also fix codespell skip paths in pyproject.toml. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Which issue does this PR close?
Closes #1453
Rationale for this change
These functions exist upstream but were not exposed to Python.
What changes are included in this PR?
Expose functions to Python
Add unit testss
Are there any user-facing changes?
New addition only.