8000 PERF: Datetime/Timestamp.normalize for timezone naive datetimes by mroeschke · Pull Request #23634 · pandas-dev/pandas · GitHub
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PERF: Datetime/Timestamp.normalize for timezone naive datetimes #23634

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Merged
merged 19 commits into from
Nov 18, 2018
Merged

PERF: Datetime/Timestamp.normalize for timezone naive datetimes #23634

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62827ef
PERF: Timestamp.normalize
Nov 12, 2018
ff171f7
PERF DatetimeIndex.normalize
Nov 12, 2018
efb281f
remove unused cython code
Nov 12, 2018
cc6eee0
remove more unused cython
Nov 12, 2018
b90abd9
Add whatsnew
Nov 12, 2018
35fac22
typo
Nov 12, 2018
f09559a
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 12, 2018
0b3a664
collect day_ns useage into day_s
Nov 13, 2018
9042aa1
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 13, 2018
3a23170
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 14, 2018
52a7eb2
Move constant to ccalendar
Nov 14, 2018
6204d21
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 14, 2018
1f1d455
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 15, 2018
44a8808
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 15, 2018
e6c74d2
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 16, 2018
0ece208
move HOUR_NS
Nov 16, 2018
bc5571a
Add performance for UTC timestamps
Nov 16, 2018
243d73a
Merge remote-tracking branch 'upstream/master' into normalize_perform…
Nov 18, 2018
fb11dcf
use notna instead
Nov 18, 2018
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use notna instead
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Matt Roeschke committed Nov 18, 2018
commit fb11dcfb3af96b2c47df5680bd5e9d6af33d60b4
2 changes: 1 addition & 1 deletion pandas/core/arrays/datetimes.py
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Expand Up @@ -854,7 +854,7 @@ def normalize(self):
dtype='datetime64[ns, Asia/Calcutta]', freq=None)
"""
if self.tz is None or timezones.is_utc(self.tz):
not_null = self.notnull()
not_null = self.notna()
DAY_NS = ccalendar.DAY_SECONDS * 1000000000
new_values = self.asi8.copy()
adjustment = (new_values[not_null] % DAY_NS)
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