Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/12719#discussion_r62800316
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/AggregateOptimizeSuite.scala
---
@@ -34,18 +34,27 @@ class AggregateOptimizeSuite extends PlanTest {
object Optimize extends RuleExecutor[LogicalPlan] {
val batches = Batch("Aggregate", FixedPoint(100),
+ FoldablePropagation,
RemoveLiteralFromGroupExpressions,
RemoveRepetitionFromGroupExpressions) :: Nil
}
+ val testRelation = LocalRelation('a.int, 'b.int, 'c.int)
+
test("remove literals in grouping expression") {
- val input = LocalRelation('a.int, 'b.int)
+ val query1 = testRelation.groupBy('a, Literal("1"), Literal(1) +
Literal(2))(sum('b))
+ val query2 = testRelation.groupBy('a)(sum('b))
+ val optimized = Optimize.execute(analyzer.execute(query1))
+ val correctAnswer = analyzer.execute(query2)
--- End diff --
a shortcut: `val correctAnswer = query2.analyze`
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