Danielle Navarro created ARROW-18337: ----------------------------------------
Summary: 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 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 -- This message was sent by Atlassian Jira (v8.20.10#820010)