Support types other than String and Int for partition columns #1154
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timsaucer
reviewed
Jun 17, 2025
python/datafusion/context.py
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| name: str, | ||
| path: str | pathlib.Path, | ||
| table_partition_cols: list[tuple[str, str]] | None = None, | ||
| table_partition_cols: list[tuple[str, pa.DataType]] | None = None, |
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To avoid a breaking change, we could make the type hint
table_partition_cols: list[tuple[str, pa.DataType]] | list[tuple[str, str]] | None = None
And then in the python code just below we can do type checking of the table_partition_cols and coerce to pyarrow data type. Alternatively we could overload the method signature and mark the old one as deprecated for a couple of releases. Either way we could avoid a breaking change without giving users the opportunity to upgrade at their schedule.
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That's fair, I opted for overloading and raising the deprecation warning
timsaucer
approved these changes
Jun 19, 2025
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Which issue does this PR close?
Closes #1155
Rationale for this change
Following datafusion PR4221, this PR exposes the functionality in the python bindings
What changes are included in this PR?
Change of the
table_partition_colsarguments inPySessionContext.register_listing_table,PySessionContext.register_parquet,PySessionContext.register_avro,PySessionContext.register_json,PySessionContext.read_parquet,PySessionContext.read_avro,PySessionContext.read_jsonAre there any user-facing changes?
Yes, the signature of the functions above is changed