viirya commented on code in PR #213:
URL:
https://github.com/apache/arrow-datafusion-comet/pull/213#discussion_r1548991785
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spark/src/main/scala/org/apache/spark/sql/comet/CometBroadcastExchangeExec.scala:
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@@ -191,7 +193,7 @@ case class CometBroadcastExchangeExec(originalPlan:
SparkPlan, child: SparkPlan)
override protected def doExecuteColumnar(): RDD[ColumnarBatch] = {
val broadcasted = executeBroadcast[Array[ChunkedByteBuffer]]()
- new CometBatchRDD(sparkContext, broadcasted.value.length, broadcasted)
+ new CometBatchRDD(sparkContext, childRDD.getNumPartitions, broadcasted)
Review Comment:
This fixes a bug. The broadcast RDD must have same number of partitions as
child RDD.
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