uros-b commented on code in PR #56624:
URL: https://github.com/apache/spark/pull/56624#discussion_r3444988936
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python/pyspark/pandas/data_type_ops/timedelta_ops.py:
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@@ -72,6 +73,35 @@ def restore(self, col: pd.Series) -> pd.Series:
else:
return col.astype(self.dtype)
+ def _with_inferred_unit(
Review Comment:
Tiny overhead: _with_inferred_unit rebuilds the field on every subtraction
on pandas 3 even when the result is already us (the common case). An early `if
promoted == us: return result` would avoid the extra _with_new_scol.
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