Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/13984#discussion_r69945470
--- Diff: R/pkg/R/SQLContext.R ---
@@ -744,6 +747,9 @@ read.df.default <- function(path = NULL, source = NULL,
schema = NULL, ...) {
if (is.null(source)) {
source <- getDefaultSqlSource()
}
+ if (source == "csv" && is.null(options[["nullValue"]])) {
--- End diff --
Thanks for that pointer to the SQL code. I guess my point is that we could
always pass the `nullValue` to the scala side and not do additional filtering
on the R side for `source == csv` ?
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