nealrichardson commented on a change in pull request #9561:
URL: https://github.com/apache/arrow/pull/9561#discussion_r585981323
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File path: r/R/dataset-write.R
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@@ -52,6 +55,8 @@
#' which case it will be V4.
#' - `codec`: A [Codec] which will be used to compress body buffers of written
#' files. Default (NULL) will not compress body buffers.
+#' - `null_fallback`: character to be used in place of missing values (`NA` or
+#' `NULL`) see [`hive_partition`] for more information.
Review comment:
```suggestion
#' `NULL`) when using Hive-style partitioning. See [hive_partition()].
```
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