Github user BryanCutler commented on a diff in the pull request:
https://github.com/apache/spark/pull/15821#discussion_r101345064
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala ---
@@ -2729,6 +2749,18 @@ class Dataset[T] private[sql](
}
}
+ /**
+ * Collect a Dataset as an ArrowRecordBatch, and serve the
ArrowRecordBatch to PySpark.
+ */
+ private[sql] def collectAsArrowToPython(): Int = {
+ val payload = collectAsArrow()
+ val payloadBytes = ArrowConverters.payloadToByteArray(payload,
this.schema)
+
+ withNewExecutionId {
+ PythonRDD.serveIterator(Iterator(payloadBytes), "serve-Arrow")
--- End diff --
Thanks @viirya for the review, I'm working on another update that will do
conversion on the executors
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