kazuyukitanimura commented on code in PR #407:
URL: https://github.com/apache/datafusion-comet/pull/407#discussion_r1602243920
##########
spark/src/main/scala/org/apache/spark/sql/comet/execution/shuffle/CometShuffleExchangeExec.scala:
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@@ -454,12 +458,13 @@ class CometShuffleWriteProcessor(
new
SQLShuffleWriteMetricsReporter(context.taskMetrics().shuffleWriteMetrics,
metrics)
}
+ // FIXME: we need actually prev of rdd?
Review Comment:
For Spark 3.x, We have this code `rdd.asInstanceOf[MapPartitionsRDD[_,
_]].prev.asInstanceOf[RDD[ColumnarBatch]]`
But new Spark 4.0 interface does not pass rdd anymore. So we cannot access
`prev`
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