Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/19276#discussion_r139745184
--- Diff: R/pkg/R/functions.R ---
@@ -2226,8 +2226,8 @@ setMethod("from_json", signature(x = "Column", schema
= "characterOrstructType")
})
#' @details
-#' \code{from_utc_timestamp}: Given a timestamp, which corresponds to a
certain time of day in UTC,
-#' returns another timestamp that corresponds to the same time of day in
the given timezone.
+#' \code{from_utc_timestamp}: Given a timestamp like '2017-07-14
02:40:00.0', interprets it as a time in UTC, and
+# renders that time as a timestamp in the given time zone. For example,
'GMT+1' would yield '2017-07-14 03:40:00.0'.
--- End diff --
Oh, and missing `#'` at the beginning.
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