Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/21649#discussion_r216185288
--- Diff: R/pkg/R/DataFrame.R ---
@@ -3905,6 +3905,16 @@ setMethod("rollup",
groupedData(sgd)
})
+isTypeAllowedForSqlHint <- function(x) {
--- End diff --
This is only used once BTW. Shall we just put this into the inside of
`hint`?
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