cloud-fan commented on code in PR #47525:
URL: https://github.com/apache/spark/pull/47525#discussion_r1698516327
##########
sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala:
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@@ -2339,6 +2340,119 @@ class DataFrameAggregateSuite extends QueryTest
test("SPARK-32761: aggregating multiple distinct CONSTANT columns") {
checkAnswer(sql("select count(distinct 2), count(distinct 2,3)"), Row(1,
1))
}
+
+ test("aggregating with various distinct expressions") {
+ abstract class AggregateTestCaseBase(
+ val query: String,
+ val resultSeq: Seq[Seq[Row]],
+ val hasExpandNodeInPlan: Boolean)
+ case class AggregateTestCase(
+ override val query: String,
+ override val resultSeq: Seq[Seq[Row]],
+ override val hasExpandNodeInPlan: Boolean)
+ extends AggregateTestCaseBase(query, resultSeq, hasExpandNodeInPlan)
+ case class AggregateTestCaseDefault(
+ override val query: String)
+ extends AggregateTestCaseBase(
+ query,
+ Seq(Seq(Row(0)), Seq(Row(1)), Seq(Row(1))),
+ hasExpandNodeInPlan = true)
+
+ val t = "t"
+ val testCases: Seq[AggregateTestCaseBase] = Seq(
+ AggregateTestCaseDefault(
+ s"""SELECT COUNT(DISTINCT "col") FROM $t"""
Review Comment:
does `"col"` mean a string literal here?
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