Github user rdblue commented on a diff in the pull request: https://github.com/apache/spark/pull/19394#discussion_r143517490 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlan.scala --- @@ -274,19 +274,26 @@ abstract class SparkPlan extends QueryPlan[SparkPlan] with Logging with Serializ val byteArrayRdd = getByteArrayRdd() val results = ArrayBuffer[InternalRow]() - byteArrayRdd.collect().foreach { bytes => - decodeUnsafeRows(bytes).foreach(results.+=) + byteArrayRdd.collect().foreach { rdd => + decodeUnsafeRows(rdd._2).foreach(results.+=) } results.toArray } + private[spark] def executeCollectIterator(): (Long, Iterator[InternalRow]) = { + val countsAndBytes = getByteArrayRdd().collect() + val total = countsAndBytes.map(_._1).sum + val rows = countsAndBytes.iterator.flatMap(rdd => decodeUnsafeRows(rdd._2)) --- End diff -- Fixed.
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