[GitHub] vanzin commented on a change in pull request #23760: [SPARK-26762][SQL][R] Arrow optimization for conversion from Spark DataFrame to R DataFrame

[GitBox <gi...@apache.org>]

vanzin commented on a change in pull request #23760: [SPARK-26762][SQL][R] Arrow optimization for conversion from Spark DataFrame to R DataFrame
URL: https://github.com/apache/spark/pull/23760#discussion_r256108422
 
 

 ##########
 File path: core/src/main/scala/org/apache/spark/api/r/RRDD.scala
 ##########
 @@ -165,6 +165,11 @@ private[r] object RRDD {
   JavaRDD[Array[Byte]] = {
     PythonRDD.readRDDFromFile(jsc, fileName, parallelism)
   }
+
+  private[spark] def serveToStream(
+      threadName: String)(writeFunc: OutputStream => Unit): Array[Any] = {
+    PythonRDD.serveToStream(threadName, new RSocketAuthHelper())(writeFunc)
 
 Review comment:
   Calling `PythonRDD` here is a little weird, but since that's already done in other places, looks fine.

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