Github user sun-rui commented on a diff in the pull request: https://github.com/apache/spark/pull/9654#discussion_r45172274 --- Diff: R/pkg/R/DataFrame.R --- @@ -293,6 +294,121 @@ setMethod("names<-", } }) +#' @rdname columns +#' @name colnames +setMethod("colnames", + signature(x = "DataFrame"), + function(x, do.NULL = TRUE, prefix = "col") { --- End diff -- Is it possible to remove default value for do.NULL and prefix, and throws unsupported message when they are not missing?
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org