Github user sun-rui commented on a diff in the pull request:
https://github.com/apache/spark/pull/11318#discussion_r55830076
--- Diff: R/pkg/R/DataFrame.R ---
@@ -1217,29 +1217,38 @@ setMethod("[[", signature(x = "DataFrame", i =
"numericOrcharacter"),
#' @rdname subset
#' @name [
-setMethod("[", signature(x = "DataFrame", i = "missing"),
- function(x, i, j, ...) {
- if (is.numeric(j)) {
- cols <- columns(x)
- j <- cols[j]
- }
- if (length(j) > 1) {
- j <- as.list(j)
+setMethod("[", signature(x = "DataFrame"),
+ function(x, i, j, ..., drop=T) {
+ # Perform filtering first if needed
--- End diff --
Maybe for Spark 2.0 we can sacrifice some backwards compatibility and have
the R user convenience as long term benefit?
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