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PERF: Cache hashing of categories #40193

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Merged
merged 3 commits into from
Apr 12, 2021
Merged

PERF: Cache hashing of categories #40193

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6bc7e0c
fix cache_readonly
fjetter Mar 17, 2021
cf30dc7
Add whatsnew
fjetter Apr 5, 2021
9fdd0b8
Cache hashing of categories in CategoricalDtype
fjetter Apr 5, 2021
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@fjetter
fjetter committed Apr 9, 2021
commit cf30dc72e4cd7b4ee3822ecfb924ce6a89b08d5c
1 change: 1 addition & 0 deletions doc/source/whatsnew/v1.3.0.rst
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Expand Up @@ -795,6 +795,7 @@ ExtensionArray

- Bug in :meth:`DataFrame.where` when ``other`` is a :class:`Series` with :class:`ExtensionArray` dtype (:issue:`38729`)
- Fixed bug where :meth:`Series.idxmax`, :meth:`Series.idxmin` and ``argmax/min`` fail when the underlying data is :class:`ExtensionArray` (:issue:`32749`, :issue:`33719`, :issue:`36566`)
- Fixed a bug where some properties of subclasses of :class:`PandasExtensionDtype` where improperly cached (:issue:`40329`)
-

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