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https://issues.apache.org/jira/browse/ARROW-14307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson closed ARROW-14307.
-----------------------------------
Fix Version/s: 6.0.0
Assignee: Neal Richardson
Resolution: Duplicate
> [R] crashes when reading empty feather with POSIXct column
> ----------------------------------------------------------
>
> Key: ARROW-14307
> URL: https://issues.apache.org/jira/browse/ARROW-14307
> Project: Apache Arrow
> Issue Type: Bug
> Components: R
> Affects Versions: 5.0.0
> Reporter: Damiano
> Assignee: Neal Richardson
> Priority: Major
> Fix For: 6.0.0
>
> Attachments: image-2021-10-13-10-35-33-643.png
>
>
> R crashes when writing and then reading an empty feather with at least one
> POSIXct column.
> {code:r}
> # Create empty df with one POSIXct column
> dates <- as.POSIXct(character())
> values <- numeric()
> df_empty <- data.frame(dates, values)
> df_empty
> # [1] dates values
> # <0 rows> (or 0-length row.names)
> sapply(df_empty, class)
> # $dates
> # [1] "POSIXct" "POSIXt"
> #
> # $values
> # [1] "numeric"
> # Write and read -> R crashes
> tempfile <- tempfile()
> arrow::write_feather(df_empty, tempfile)
> df_restored <- arrow::read_feather(tempfile)
> # >> R crashes here. Tested on 3.6.3 & 4.1.1 for windows and Linux.
> unlink(tempfile)
> {code}
> At times, in RStudio, this message is displayed when R crashes.
> !image-2021-10-13-10-35-33-643.png!
>
> Tested on Windows (R version 3.6.3 and 4.1.1) and Linux (R 3.6.3).
> {code:r}
> # TESTED ON WINDOWS
> Arrow ‘5.0.0.2’
> R version 3.6.3 (2020-02-29)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 10 x64 (build 19043)
> R version 4.1.1 (2021-08-10)
> Platform: i386-w64-mingw32/i386 (32-bit)
> Running under: Windows 10 x64 (build 19043)
> # TESTED ON LINUX
> Arrow ‘5.0.0.2’
> R version 3.6.3 (2020-02-29)
> Platform: x86_64-pc-linux-gnu (64-bit)
> # Running under: Debian GNU/Linux 10 (buster)
> {code}
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