Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/18159#discussion_r125217353 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/command/commands.scala --- @@ -47,10 +56,56 @@ trait RunnableCommand extends logical.Command { } /** + * A trait for classes that can update its metrics of data writing operation. + */ +trait MetricUpdater { + + val metrics: Map[String, SQLMetric] + + /** + * Callback function that update metrics collected from the writing operation. + */ + protected def callbackMetricsUpdater(writeSummaries: Seq[ExecutedWriteSummary]): Unit = { --- End diff -- Good for me.
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