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
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