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PERF: MultiIndex unpickle #47916

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Merged
merged 1 commit into from
Aug 1, 2022
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PERF: MultiIndex unpickle #47916

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4 changes: 4 additions & 0 deletions pandas/core/indexes/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -259,6 +259,10 @@ def _new_Index(cls, d):
# GH#23752 "labels" kwarg has been replaced with "codes"
d["codes"] = d.pop("labels")

# Since this was a valid MultiIndex at pickle-time, we don't need to
# check validty at un-pickle time.
d["verify_integrity"] = False

elif "dtype" not in d and "data" in d:
# Prevent Index.__new__ from conducting inference;
# "data" key not in RangeIndex
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