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BUG: DatetimeIndex intersection with non-anchored freq #62341
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arthurlw
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BUG: DatetimeIndex intersection with non-anchored freq #62341
arthurlw
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commit into
pandas-dev:main
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arthurlw:custom_datetimeindex_intersection
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def _can_fast_intersect(self, other: Self) -> bool:
# Note: we only get here with len(self) > 0 and len(other) > 0
if self.freq is None:
if self.freq is Noneorself.freq=="C":
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the issue isn't just handling "C", but identifying what conditions work in the general case
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doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.