cloud-fan commented on a change in pull request #30026:
URL: https://github.com/apache/spark/pull/30026#discussion_r503945310
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/BasicWriteStatsTracker.scala
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@@ -30,12 +32,13 @@ import org.apache.spark.sql.execution.metric.{SQLMetric,
SQLMetrics}
import org.apache.spark.util.SerializableConfiguration
+
/**
* Simple metrics collected during an instance of [[FileFormatDataWriter]].
* These were first introduced in https://github.com/apache/spark/pull/18159
(SPARK-20703).
*/
case class BasicWriteTaskStats(
- numPartitions: Int,
+ partitions: Seq[InternalRow],
Review comment:
This increases the data size we need to transfer between executors and
the driver. Do we have a microbenchmark to verify the impact?
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