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https://issues.apache.org/jira/browse/ARROW-12809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17360987#comment-17360987
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Antoine Pitrou commented on ARROW-12809:
----------------------------------------
Well, you just need to cast from string to timestamp if you have ISO-formatted
timestamps. It's more flexible than strptime-based parsing too:
{code:python}
>>> arr = pa.array(['1999-01-28', '1971-03-05 01:00:00', '2001-12-02
>>> 12:34:56.123456'])
>>> arr.cast(pa.timestamp('ns'))
<pyarrow.lib.TimestampArray object at 0x7f8e5a1526e0>
[
1999-01-28 00:00:00.000000000,
1971-03-05 01:00:00.000000000,
2001-12-02 12:34:56.123456000
]
{code}
> [C++] Add StrptimeOptions defaults
> ----------------------------------
>
> Key: ARROW-12809
> URL: https://issues.apache.org/jira/browse/ARROW-12809
> Project: Apache Arrow
> Issue Type: New Feature
> Components: C++
> Reporter: Neal Richardson
> Priority: Major
>
> Per
> https://github.com/apache/arrow/blob/master/cpp/src/arrow/compute/kernels/scalar_string.cc#L1744
> there are no default options for strptime (format, unit). But the
> TimestampType constructor has a default unit of milliseconds
> (https://github.com/apache/arrow/blob/master/cpp/src/arrow/type.h#L1236), and
> a reasonable default for {{format}} would be ISO8601.
> cc [~bkietz] [~wesm] for opinions as the authors of this code (according to
> {{git blame}})
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