Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/15821#discussion_r108582862
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala ---
@@ -2747,6 +2747,17 @@ class Dataset[T] private[sql](
}
}
+ /**
+ * Collect a Dataset as ArrowPayload byte arrays and serve to PySpark.
+ */
+ private[sql] def collectAsArrowToPython(): Int = {
+ val payloadRdd = toArrowPayloadBytes()
+ val payloadByteArrays = payloadRdd.collect()
--- End diff --
Can it be better to use`PythonRDD.toLocalIteratorAndServe` to serve a local
iterator of the rdd to python side?
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