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https://issues.apache.org/jira/browse/ARROW-18337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dewey Dunnington reassigned ARROW-18337:
----------------------------------------
Assignee: Dewey Dunnington
> [R] Possible undesirable handling of POSIXlt objects
> ----------------------------------------------------
>
> Key: ARROW-18337
> URL: https://issues.apache.org/jira/browse/ARROW-18337
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Danielle Navarro
> Assignee: Dewey Dunnington
> Priority: Major
> Labels: pull-request-available
> Fix For: 11.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> In the course of updating documentation, I noticed that it is possible to
> create an Arrow array of POSIXlt objects from R, but not a scalar.
> https://github.com/apache/arrow/pull/14514#discussion_r1016078081
> This works:
> {code:r}
> tm <- as.POSIXlt(c(Sys.time(), Sys.time()))
> arrow::Array$create(tm)
> {code}
> This fails:
> {code:r}
> arrow::Scalar$create(as.POSIXlt(Sys.time()))
> {code}
> It's possible to manually convert a POSIXlt object to a struct scalar like
> this:
> {code:r}
> df <- as.data.frame(unclass(as.POSIXlt(Sys.time())))
> arrow::Scalar$create(df,
> type = struct(
> sec = float32(),
> min = int32(),
> hour = int32(),
> mday = int32(),
> mon = int32(),
> year = int32(),
> wday = int32(),
> yday = int32(),
> isdst = int32(),
> zone = utf8(),
> gmtoff = int32()
> ))
> {code}
> although this does not seem precisely the same as the behaviour of
> Array$create() which creates an extension type?
> It was unclear to us ([~thisisnic] and myself) whether the current behaviour
> was desirable, so it seemed sensible to open an issue!
> Related issue:
> https://issues.apache.org/jira/browse/ARROW-18263
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