Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/21948#discussion_r207723962 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/continuous/ContinuousRateStreamSource.scala --- @@ -89,7 +89,8 @@ class RateStreamContinuousReader(options: DataSourceOptions) extends ContinuousR start.runTimeMs, i, numPartitions, - perPartitionRate): InputPartition[InternalRow] + perPartitionRate) + .asInstanceOf[InputPartition[InternalRow]] --- End diff -- This is to address your comments: do not mix read-side changes. So I reverted it.
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