Github user BoleynSu commented on the issue: https://github.com/apache/spark/pull/18836 A test case to make the existing code fail. @srowen I am sorry that this pull request is not well formatted but I just want to help. ```scala import org.apache.spark.sql.SparkSession object Test extends App { val spark = SparkSession.builder().master("local").appName("test").getOrCreate() import spark.sqlContext.implicits._ case class T(i: Int) spark.sparkContext.parallelize(List(T(1), T(3), T(3))).toDF.createOrReplaceTempView("T") val in = "select distinct a.i + 1,a.* from T a cross join T t where a.i > 1 and t.i = a.i group by a.i having a.i > 2" val sql = spark.sql(in) sql.queryExecution.executedPlan.children.map { x => x.children.map { x => x.children.map { x => x.children.map { x => x.children.map { x => x.children.map { x => println(x.outputOrdering) } } } } } } } ```
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