Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/23161#discussion_r236973169
--- Diff: R/pkg/R/DataFrame.R ---
@@ -2732,14 +2732,24 @@ setMethod("union",
dataFrame(unioned)
})
-#' Return a new SparkDataFrame containing the union of rows
-#'
-#' This is an alias for `union`.
+#' Return a new SparkDataFrame containing the union of rows.
+#' This is an alias for \code{union}.
#'
-#' @rdname union
-#' @name unionAll
+#' @param x a SparkDataFrame.
+#' @param y a SparkDataFrame.
+#' @return A SparkDataFrame containing the result of the unionAll
operation.
+#' @family SparkDataFrame functions
#' @aliases unionAll,SparkDataFrame,SparkDataFrame-method
-#' @note unionAll since 1.4.0
+#' @rdname unionAll
+#' @name unionAll
+#' @examples
+#'\dontrun{
+#' sparkR.session()
+#' df1 <- read.json(path)
+#' df2 <- read.json(path2)
+#' unionAllDF <- unionAll(df1, df2)
+#' }
+#' @note unionAll since 3.0.0
--- End diff --
this should be `1.4.0` as above
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
