HairstonE commented on code in PR #22132:
URL: https://github.com/apache/datafusion/pull/22132#discussion_r3306792443


##########
datafusion/sqllogictest/test_files/optimizer_group_by_constant.slt:
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@@ -60,10 +60,9 @@ FROM test_table t
 group by 1, 2, 3
 ----
 logical_plan
-01)Projection: Int64(123), Int64(456), Int64(789), count(Int64(1)), avg(t.c12)
-02)--Aggregate: groupBy=[[]], aggr=[[count(Int64(1)), avg(t.c12)]]
-03)----SubqueryAlias: t
-04)------TableScan: test_table projection=[c12]
+01)Aggregate: groupBy=[[Int64(123), Int64(456), Int64(789)]], 
aggr=[[count(Int64(1)), avg(t.c12)]]

Review Comment:
   I am shooting for the DuckDB behavior. This gets the correct output on empty 
input. But yeah it will be slower on all inputs. Should I workshop this a bit 
more?



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