Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/11846#discussion_r56945948
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala
---
@@ -459,25 +460,103 @@ class SQLQuerySuite extends QueryTest with
SharedSQLContext {
Seq(Row(1, 3), Row(2, 3), Row(3, 3)))
}
- test("literal in agg grouping expressions") {
+ test("Group By Ordinal - basic") {
checkAnswer(
- sql("SELECT a, count(1) FROM testData2 GROUP BY a, 1"),
- Seq(Row(1, 2), Row(2, 2), Row(3, 2)))
- checkAnswer(
- sql("SELECT a, count(2) FROM testData2 GROUP BY a, 2"),
- Seq(Row(1, 2), Row(2, 2), Row(3, 2)))
+ sql("SELECT a, sum(b) FROM testData2 GROUP BY 1"),
+ sql("SELECT a, sum(b) FROM testData2 GROUP BY a"))
+ // duplicate group-by columns
checkAnswer(
sql("SELECT a, 1, sum(b) FROM testData2 GROUP BY a, 1"),
sql("SELECT a, 1, sum(b) FROM testData2 GROUP BY a"))
+
+ checkAnswer(
+ sql("SELECT a, 1, sum(b) FROM testData2 GROUP BY 1, 2"),
+ sql("SELECT a, 1, sum(b) FROM testData2 GROUP BY a"))
+ }
+
+ test("Group By Ordinal - non aggregate expressions") {
+ checkAnswer(
+ sql("SELECT a, b + 2, count(2) FROM testData2 GROUP BY a, 2"),
+ sql("SELECT a, b + 2, count(2) FROM testData2 GROUP BY a, b + 2"))
+
+ checkAnswer(
+ sql("SELECT a, b + 2, count(2) FROM testData2 GROUP BY a, b + 2"),
+ Seq(Row(1, 3, 1), Row(1, 4, 1), Row(2, 3, 1), Row(2, 4, 1), Row(3,
3, 1), Row(3, 4, 1)))
--- End diff --
I think we don't need to test the correctness of `Aggregate` operator in
this PR.
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