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https://issues.apache.org/jira/browse/ARROW-15813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17509960#comment-17509960
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Dragoș Moldovan-Grünfeld edited comment on ARROW-15813 at 3/25/22, 10:14 AM:
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There might be a way to implement this directly in R once {{strptime}} can
return a {{NULL}} so we can {{coalesce}} through several formats.
was (Author: dragosmg):
This could be implemented only in R once {{strptime}} can return a {{NULL}} so
we can {{coalesce}} through several formats.
> [R]strptime should support partial format
> -----------------------------------------
>
> Key: ARROW-15813
> URL: https://issues.apache.org/jira/browse/ARROW-15813
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Dragoș Moldovan-Grünfeld
> Priority: Major
>
> In base R we can return just the parts from a date time by passing a
> restricted format.
> {code:r}
> > strptime("2012-05-25 18:45:32", format = "%Y-%m-%d")
> [1] "2012-05-25 BST"
> > strptime("2012-05-25 18:45:32", format = "%Y-%m-%d %H")
> [1] "2012-05-25 18:00:00 BST
> {code}
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