object ShuffleExchangeExec extends Serializable
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def
createShuffleWriteProcessor(metrics: Map[String, SQLMetric]): ShuffleWriteProcessor
Create a customized ShuffleWriteProcessor for SQL which wrap the default metrics reporter with SQLShuffleWriteMetricsReporter as new reporter for ShuffleWriteProcessor.
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def
prepareShuffleDependency(rdd: RDD[InternalRow], outputAttributes: Seq[Attribute], newPartitioning: Partitioning, serializer: Serializer, writeMetrics: Map[String, SQLMetric]): ShuffleDependency[Int, InternalRow, InternalRow]
Returns a ShuffleDependency that will partition rows of its child based on the partitioning scheme defined in
newPartitioning
.Returns a ShuffleDependency that will partition rows of its child based on the partitioning scheme defined in
newPartitioning
. Those partitions of the returned ShuffleDependency will be the input of shuffle. -
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