jonkeane commented on a change in pull request #9591:
URL: https://github.com/apache/arrow/pull/9591#discussion_r584794792
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File path: r/R/dataset-write.R
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@@ -53,6 +53,17 @@
#' - `codec`: A [Codec] which will be used to compress body buffers of written
#' files. Default (NULL) will not compress body buffers.
#' @return The input `dataset`, invisibly
+#' @examples
+#' \donttest{
+#' # we can group by cyl, cyl and gear or even more variables
+#' write_dataset(mtcars, tempdir(), "feather", partitioning = "cyl"))
Review comment:
https://issues.apache.org/jira/browse/ARROW-11582 is relevant here (we
should make that error message nicer, and possibly default to parquet if we can
without hurting anything else / needing to do a scan of the data / etc)
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