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regression fix for merging DF with datetime index with empty DF #36897

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Merged
merged 17 commits into from
Nov 3, 2020
Merged

regression fix for merging DF with datetime index with empty DF #36897

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16a7844
possible fix for missing datetime data types
PCerles Oct 5, 2020
029447d
update comment
PCerles Oct 5, 2020
30d0c90
added test
PCerles Oct 5, 2020
08d0ef1
updated test
PCerles Oct 5, 2020
3da79a4
added release note
PCerles Oct 5, 2020
b3a5261
restructured test to not rely on reset_index
PCerles Oct 6, 2020
d85af30
and make data smaller
PCerles Oct 6, 2020
70651d1
reformat from pd.NA
PCerles Oct 6, 2020
a70c0ff
test fixes
PCerles Oct 27, 2020
ce3a1fa
structure
PCerles Oct 27, 2020
83be75e
comma missing
PCerles Oct 27, 2020
fe1335e
fix import and explicitly construct multi indexes
PCerles Oct 27, 2020
e5045f3
changed 1.2 release notes and added right/left tests
PCerles Nov 2, 2020
9fb0687
accidentally removed newline
PCerles Nov 2, 2020
0f856dd
fix auto formatter
PCerles Nov 2, 2020
b1c7519
changed doc place and parametrized test
PCerles Nov 2, 2020
84822c6
restructured test per pr comments
PCerles Nov 3, 2020
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updated test
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@PCerles
PCerles committed Nov 2, 2020
commit 08d0ef1df54d9c5948c5615c6561735aa836be8c
16 changes: 8 additions & 8 deletions pandas/tests/reshape/merge/test_multi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -460,14 +460,14 @@ def test_merge_na_keys(self):
def test_merge_na_datetime_keys_empty_df(self):
data = [
[pd.Timestamp("1950-01-01"), "A", 1.5],
[pd.Timestamp("1950-01-01"), "B", 1.5],
[pd.Timestamp("1950-01-01"), "B", 1.5],
[pd.Timestamp("1950-01-01"), "B", np.nan],
[pd.Timestamp("1950-01-01"), "B", 4.0],
[pd.Timestamp("1950-01-01"), "C", 4.0],
[pd.Timestamp("1950-01-01"), "C", np.nan],
[pd.Timestamp("1950-01-01"), "C", 3.0],
[pd.Timestamp("1950-01-01"), "C", 4.0],
[pd.Timestamp("1950-01-02"), "B", 1.5],
[pd.Timestamp("1950-01-03"), "B", 1.5],
[pd.Timestamp("1950-01-04"), "B", np.nan],
[pd.Timestamp("1950-01-05"), "B", 4.0],
[pd.Timestamp("1950-01-06"), "C", 4.0],
[pd.Timestamp("1950-01-07"), "C", np.nan],
[pd.Timestamp("1950-01-08"), "C", 3.0],
[pd.Timestamp("1950-01-09"), "C", 4.0],
]

frame = DataFrame(data, columns=["date", "panel", "data"]).set_index(
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