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https://issues.apache.org/jira/browse/ARROW-18337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635382#comment-17635382
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Dewey Dunnington commented on ARROW-18337:
------------------------------------------
The backtrace of the ValueOrDie is:
{code:java}
/Users/dewey/Desktop/rscratch/arrow/cpp/src/arrow/result.cc:28: ValueOrDie
called on an error: NotImplemented: construction from scalar of type POSIXlt of
length 0
/Users/dewey/Desktop/rscratch/arrow/cpp/src/arrow/array/util.cc:545
VisitTypeInline(*scalar_.type, this)
0 libarrow.1100.0.0.dylib 0x000000011b3a9d0c
_ZN5arrow4util7CerrLogD2Ev + 236
1 libarrow.1100.0.0.dylib 0x000000011b3a9c18
_ZN5arrow4util7CerrLogD0Ev + 12
2 libarrow.1100.0.0.dylib 0x000000011b3a9bb4
_ZN5arrow4util8ArrowLogD1Ev + 48
3 libarrow.1100.0.0.dylib 0x000000011b2862a0
_ZN5arrow8internal17InvalidValueOrDieERKNS_6StatusE + 244
4 libarrow.1100.0.0.dylib 0x000000011b28a0d8
_ZNK5arrow6Scalar8ToStringEv + 792
5 arrow.so 0x000000010c064fac
_arrow_Scalar__ToString + 108
6 libR.dylib 0x0000000102f89be4 R_doDotCall + 1572
{code}
> [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
> Priority: Major
>
> 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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