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BUG: preserve _id in MultiIndex.copy(deep=False) #47900

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Merged
merged 1 commit into from
Jul 29, 2022
Merged

BUG: preserve _id in MultiIndex.copy(deep=False) #47900

merged 1 commit into from
Jul 29, 2022

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jbrockmendel
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@mroeschke mroeschke added this to the 1.5 milestone Jul 29, 2022
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mroeschke reviewed Jul 29, 2022
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Worth a whatsnew note?

@jbrockmendel
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Worth a whatsnew note?

Not really. Affects perf in corner cases.

@mroeschke mroeschke merged commit 2a082fd into pandas-dev:main Jul 29, 2022
@jbrockmendel jbrockmendel deleted the bug-mi-copy branch July 30, 2022 00:49
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PERF: MultiIndex.copy(deep=False) not preserving _id
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@jbrockmendel @mroeschke