Github user felixcheung commented on a diff in the pull request: https://github.com/apache/spark/pull/15239#discussion_r81070754 --- Diff: R/pkg/R/SQLContext.R --- @@ -328,6 +328,7 @@ setMethod("toDF", signature(x = "RDD"), #' It goes through the entire dataset once to determine the schema. #' #' @param path Path of file to read. A vector of multiple paths is allowed. +#' @param ... additional external data source specific named properties. --- End diff -- right - when 2 functions share the same @rdname, they are documented on the same Rd page and CRAN check requirements are to have 1 and only 1 `@param ...` when either function has `...` as parameter. I haven't check, but my guess is you need to add `@param ...` for `@rdname read.json` since it is new.
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