8000 BUG: Fix concat of frames with extension types (no reindexed columns) by jorisvandenbossche · Pull Request #34339 · pandas-dev/pandas · GitHub
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BUG: Fix concat of frames with extension types (no reindexed columns) #34339

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add whatsnew
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jorisvandenbossche committed Jun 6, 2020
commit 63a6570462c1826763e6dc13ab6f21e30c426d2e
1 change: 1 addition & 0 deletions doc/source/whatsnew/v1.1.0.rst
Original file line number Diff line number Diff line change
Expand Up @@ -291,6 +291,7 @@ Other enhancements
- :meth:`groupby.transform` now allows ``func`` to be ``pad``, ``backfill`` and ``cumcount`` (:issue:`31269`).
- :meth:`~pandas.io.json.read_json` now accepts `nrows` parameter. (:issue:`33916`).
- :meth `~pandas.io.gbq.read_gbq` now allows to disable progress bar (:issue:`33360`).
- :func:`concat` and `~DataFrame.append` now preserve extension dtypes (:issue:`33607`, :issue:`34339`).

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