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[SPARK-55297][PYTHON][PS] Restore timedelta dtype based on the original dtype #54079

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[SPARK-55297][PYTHON][PS] Restore timedelta dtype based on the original dtype #54079

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8 changes: 8 additions & 0 deletions python/pyspark/pandas/data_type_ops/timedelta_ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
import pandas as pd
from pandas.api.types import CategoricalDtype

from pyspark.loose_version import LooseVersion
from pyspark.sql.types import (
BooleanType,
DayTimeIntervalType,
Expand Down Expand Up @@ -64,6 +65,13 @@ def prepare(self, col: pd.Series) -> pd.Series:
"""Prepare column when from_pandas."""
return col

def restore(self, col: pd.Series) -> pd.Series:
"""Restore column when to_pandas."""
if LooseVersion(pd.__version__) < "3.0.0":
return col
else:
return col.astype(self.dtype)

def sub(self, left: IndexOpsLike, right: Any) -> SeriesOrIndex:
_sanitize_list_like(right)

Expand Down