Github user wangmiao1981 commented on a diff in the pull request:
https://github.com/apache/spark/pull/17640#discussion_r113585851
--- Diff: R/pkg/R/serialize.R ---
@@ -83,6 +83,7 @@ writeObject <- function(con, object, writeType = TRUE) {
Date = writeDate(con, object),
POSIXlt = writeTime(con, object),
POSIXct = writeTime(con, object),
+ bigint = writeDouble(con, object),
--- End diff --
When specifying schema with `bigint`, we will hit the bigint path. Without
this change, it will thrown an error of type mismatch. But as you said, we
can't specify `bigint` type in R console.
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