Github user MaxGekk commented on a diff in the pull request:
https://github.com/apache/spark/pull/22226#discussion_r214188879
--- Diff: R/pkg/R/functions.R ---
@@ -1697,8 +1697,8 @@ setMethod("to_date",
})
#' @details
-#' \code{to_json}: Converts a column containing a \code{structType}, array
of \code{structType},
-#' a \code{mapType} or array of \code{mapType} into a Column of JSON
string.
+#' \code{to_json}: Converts a column containing a \code{structType}, a
\code{mapType}
+#' or an array into a Column of JSON string.
--- End diff --
I am not sure
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