Github user huaxingao commented on a diff in the pull request:
https://github.com/apache/spark/pull/23161#discussion_r237628719
--- Diff: R/pkg/R/DataFrame.R ---
@@ -2732,13 +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}.
--- End diff --
You are right, it is the title and newline is required. I manually checked.
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