Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/22921#discussion_r231125506
--- Diff: R/pkg/R/generics.R ---
@@ -748,7 +748,7 @@ setGeneric("add_months", function(y, x) {
standardGeneric("add_months") })
#' @rdname column_aggregate_functions
#' @name NULL
-setGeneric("approxCountDistinct", function(x, ...) {
standardGeneric("approxCountDistinct") })
+setGeneric("approx_count_distinct", function(x, ...) {
standardGeneric("approx_count_distinct") })
--- End diff --
It is, but then again that's exactly what was deprecated and removed in
Python and Scala. Major versions can have breaking changes. Yes R isn't always
in sync but that's a bug not a feature? Let me surface this to dev@ as I think
it's going to come up a few more times.
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