ulysses-you commented on a change in pull request #32012:
URL: https://github.com/apache/spark/pull/32012#discussion_r605320366
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File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/metric/SQLMetricsSuite.scala
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@@ -168,7 +168,7 @@ class SQLMetricsSuite extends SharedSparkSession with
SQLMetricsTestUtils
// Exchange(nodeId = 5)
// LocalTableScan(nodeId = 6)
Seq(true, false).foreach { enableWholeStage =>
- val df = generateRandomBytesDF().repartition(1).groupBy('a).count()
+ val df = generateRandomBytesDF().repartition(2).groupBy('a).count()
Review comment:
`repartition(1)` + `groupBy ` will eliminate the agg required exchange
since `SinglePartition` can satisfies with all `Distribution` (exclude
broadcast). So there change to `repartition(2)`.
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