Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/21255#discussion_r186369103 --- Diff: R/pkg/R/functions.R --- @@ -209,6 +209,7 @@ NULL #' head(select(tmp, array_max(tmp$v1), array_min(tmp$v1))) #' head(select(tmp, array_position(tmp$v1, 21))) #' head(select(tmp, flatten(tmp$v1))) +#' head(select(tmp, reverse(tmp$v1))) --- End diff -- Also add `concat` here?
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