r2evans commented on issue #40723:
URL: https://github.com/apache/arrow/issues/40723#issuecomment-2013318654
Part of me says I don't _need_ the data, I'd rather have all of the
filenames created ... but that's more of a feature-request than a bug-report.
```r
res <- arrow::write_dataset(mtcars, "mt", partitioning = c("cyl", "gear"))
res
# NULL
list.files("mt", recursive = TRUE, full.names = TRUE)
# [1] "mt/cyl=4/gear=3/part-0.parquet" "mt/cyl=4/gear=4/part-0.parquet"
"mt/cyl=4/gear=5/part-0.parquet" "mt/cyl=6/gear=3/part-0.parquet"
# [5] "mt/cyl=6/gear=4/part-0.parquet" "mt/cyl=6/gear=5/part-0.parquet"
"mt/cyl=8/gear=3/part-0.parquet" "mt/cyl=8/gear=5/part-0.parquet"
```
That is, I don't want to need to do `list.files(..)`, since `arrow` knows
internally what files were created. A recursive search can get a little
annoying if there are many existing files.
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