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fix(python/sedonadb): Tweaks to support pandas>=3.0 #538

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Merged
paleolimbot merged 1 commit into from
Jan 22, 2026
+10 −2
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fix(python/sedonadb): Tweaks to support pandas>=3.0 #538

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3 changes: 3 additions & 0 deletions python/sedonadb/python/sedonadb/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -518,7 +518,10 @@ def _qualified_type_name(obj):

SPECIAL_CASED_SCANS = {
"pyarrow.lib.Table": _scan_collected_default,
# pandas < 3.0
"pandas.core.frame.DataFrame": _scan_collected_default,
# pandas >= 3.0
"pandas.DataFrame": _scan_collected_default,
"geopandas.geodataframe.GeoDataFrame": _scan_geopandas,
"polars.dataframe.frame.DataFrame": _scan_collected_default,
}
9 changes: 7 additions & 2 deletions python/sedonadb/tests/test_datasource.py
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Expand Up @@ -74,8 +74,13 @@ def test_read_ogr_multi_file(con):

with tempfile.TemporaryDirectory() as td:
# Create partitioned files by writing Parquet first and translating
# one file at a time
con.create_data_frame(gdf).to_parquet(td, partition_by="partition")
# one file at a time. We need to cast partition in pandas>=3.0 because
# the default translation of a string column is LargeUtf8 and this is not
# currently supported by DataFusion partition_by.
con.create_data_frame(gdf).to_view("tmp_gdf", overwrite=True)
con.sql(
"""SELECT idx, partition::VARCHAR AS partition, wkb_geometry FROM tmp_gdf"""
).to_parquet(td, partition_by="partition")
for parquet_path in Path(td).rglob("*.parquet"):
fgb_path = str(parquet_path).replace(".parquet", ".fgb")
con.read_parquet(parquet_path).to_pandas().to_file(fgb_path)
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