Github user felixcheung commented on a diff in the pull request:
https://github.com/apache/spark/pull/21434#discussion_r191056304
--- Diff: R/pkg/R/functions.R ---
@@ -3062,6 +3077,21 @@ setMethod("array_sort",
column(jc)
})
+#' @details
+#' \code{arrays_overlap}: Returns true if the input arrays have at least
one non-null element in
+#' common. If not and both arrays are non-empty and any of them contains a
null, it returns null.
+#' It returns false otherwise.
+#'
+#' @rdname column_collection_functions
+#' @aliases arrays_overlap arrays_overlap,Column-method
+#' @note arrays_overlap since 2.4.0
+setMethod("arrays_overlap",
+ signature(y = "Column", x = "Column"),
--- End diff --
is there a reason this is "y" and then "x" and not "x" and then "y"?
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