Github user maropu commented on a diff in the pull request: https://github.com/apache/spark/pull/21752#discussion_r201916183 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala --- @@ -717,4 +717,9 @@ class DataFrameAggregateSuite extends QueryTest with SharedSQLContext { Row(1, 2, 1) :: Row(2, 2, 2) :: Row(3, 2, 3) :: Nil) } + test("SPARK-24788: RelationalGroupedDataset.toString " + --- End diff -- super nit: can you simplify the test title and then avoid the multi-line title?
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