Github user sun-rui commented on a diff in the pull request:
https://github.com/apache/spark/pull/6183#discussion_r30455447
--- Diff: core/src/main/scala/org/apache/spark/api/r/SerDe.scala ---
@@ -166,6 +166,24 @@ private[spark] object SerDe {
}
}
+ def readEnv(in: DataInputStream): java.util.Map[Object, Object] = {
--- End diff --
I just want to keep readMap() for the case where in R side an environment
in which all values are of same type, the value type is serialized once. It is
optimized than readEnv(). But I am OK if you think we can update readMap() and
remove readEnv() for now and do such optimization in the future if necessary.
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