Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/18025#discussion_r117548367
--- Diff: R/pkg/R/generics.R ---
@@ -396,67 +397,81 @@ setGeneric("agg", function (x, ...) {
standardGeneric("agg") })
#' @param object x a SparkDataFrame or a Column
#' @param data new name to use
#' @return a SparkDataFrame or a Column
+#' @noRd
NULL
#' @rdname arrange
#' @export
+#' @noRd
setGeneric("arrange", function(x, col, ...) { standardGeneric("arrange") })
#' @rdname as.data.frame
#' @export
+#' @noRd
setGeneric("as.data.frame",
function(x, row.names = NULL, optional = FALSE, ...) {
standardGeneric("as.data.frame")
})
#' @rdname attach
#' @export
+#' @noRd
setGeneric("attach")
#' @rdname cache
#' @export
+#' @noRd
setGeneric("cache", function(x) { standardGeneric("cache") })
#' @rdname checkpoint
#' @export
+#' @noRd
setGeneric("checkpoint", function(x, eager = TRUE) {
standardGeneric("checkpoint") })
#' @rdname coalesce
#' @param x a Column or a SparkDataFrame.
--- End diff --
waiting - having these here is intentional? if a function supports
different type we don't want the documentation to go to DataFrame.R because
then Column.R will look empty.
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