BUG: MultiIndex.join losing dtype #49877
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# Conflicts: # doc/source/whatsnew/v2.0.0.rst
mroeschke
reviewed
Nov 28, 2022
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Looks good. Could you also add a combine_first unit test from the original issue as a smoke test? #49830 (comment)
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Added the test |
mroeschke
reviewed
Nov 29, 2022
mroeschke
approved these changes
Nov 29, 2022
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Thanks @phofl |
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combine_first()coerces toobjectforMultiIndexand all-nan index columns #49830 (Replace xxxx with the GitHub issue number)doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.#Sits on top of #49847