pachamaltese commented on a change in pull request #9748:
URL: https://github.com/apache/arrow/pull/9748#discussion_r596909169
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File path: r/R/dataset-write.R
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@@ -54,6 +54,40 @@
#' - `null_fallback`: character to be used in place of missing values (`NA` or
#' `NULL`) when using Hive-style partitioning. See [hive_partition()].
#' @return The input `dataset`, invisibly
+#' @examples
+#' # We can partition by one more variables, say, cyl and gear in mtcars
dataset
+#' one_part_dir <- tempfile()
+#' two_part_dir <- tempfile()
+#' write_dataset(mtcars, one_part_dir, "parquet", partitioning = "cyl")
+#' write_dataset(mtcars, two_part_dir, "parquet", partitioning = c("cyl",
"gear"))
+#'
+#' # See the contents of the directory we wrote to in order to demonstrate
+#' # what partitioning does
+#' list(
+#' cyl_partioning = list.files(one_part_dir, pattern = "parquet",
+#' recursive = TRUE),
+#' cyl_gear_partitioning = list.files(two_part_dir, pattern = "parquet",
+#' recursive = TRUE)
+#' )
+#'
+#' # We can do the same combining both arrow and dplyr
Review comment:
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