dongjoon-hyun commented on a change in pull request #31908:
URL: https://github.com/apache/spark/pull/31908#discussion_r598377125
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File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/AggregateOptimizeSuite.scala
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@@ -71,4 +74,33 @@ class AggregateOptimizeSuite extends AnalysisTest {
comparePlans(optimized, correctAnswer)
}
+
+ test("Remove left join if it only has distinct on left side") {
Review comment:
Although it's not required for new features, could you add a test
prefix, `SPARK-34808:`, for reviewers, please?
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