[GitHub] [arrow] dragosmg edited a comment on pull request #12319: ARROW-14199 [R] bindings for format (where possible)

[GitBox <gi...@apache.org>]

dragosmg edited a comment on pull request #12319:
URL: https://github.com/apache/arrow/pull/12319#issuecomment-1028108485


   I think the [failures I am seeing so far](https://github.com/apache/arrow/runs/5038040447?check_suite_focus=true) are due to the difference between `base::format()` and `base::strftime()`. While in {arrow} they behave similarly (due to the nature of my implementation), in base R they do not:
   ``` r
   library(dplyr, warn.conflicts = FALSE)
   library(lubridate, warn.conflicts = FALSE)
   times <- tibble(
     datetime = c(lubridate::ymd_hms("2018-10-07 19:04:05", tz = "Etc/GMT+6"), NA),
     date = c(as.Date("2021-01-01"), NA)
   )
   formats <- "%a %A %w %d %b %B %m %y %Y %H %I %p %M %z %Z %j %U %W %x %X %% %G %V %u"
   a <- times$datetime[1]
   a
   #> [1] "2018-10-07 19:04:05 -06"
   format(a, format = formats)
   #> [1] "Sun Sunday 0 07 Oct October 10 18 2018 19 07 PM 04 -0600 -06 280 40 40 10/07/2018 19:04:05 % 2018 40 7"
   strftime(a, format = formats)
   #> [1] "Mon Monday 1 08 Oct October 10 18 2018 02 02 AM 04 +0100 BST 281 40 41 10/08/2018 02:04:05 % 2018 41 1"
   ```
   
   <sup>Created on 2022-02-02 by the [reprex package](https://reprex.tidyverse.org) (v2.0.1)</sup> 


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