aokolnychyi commented on code in PR #51091:
URL: https://github.com/apache/spark/pull/51091#discussion_r2162728383
##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/MergeRowsExec.scala:
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@@ -69,6 +71,14 @@ case class MergeRowsExec(
copy(child = newChild)
}
+ override lazy val metrics: Map[String, SQLMetric] = Map(
+ "numTargetRowsCopied" -> SQLMetrics.createMetric(sparkContext,
+ "Number of target rows rewritten unmodified because they did not meet
any condition."),
+ "numTargetRowsUnused" -> SQLMetrics.createMetric(sparkContext,
+ "Number of target rows dropped because they did not meet any
condition."),
+ "numSourceRowsUnused" -> SQLMetrics.createMetric(sparkContext,
Review Comment:
Do other nodes have constants for these? We refer to them below.
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