| /* | |
| * Description : Tests that max aggregation correctly returns null for an empty stream, | |
| * with an aggregate combiner. | |
| * Success : Yes | |
| */ | |
| drop dataverse test if exists; | |
| create dataverse test; | |
| use dataverse test; | |
| create type TestType as closed { | |
| id: int32, | |
| val: double | |
| } | |
| create dataset Test(TestType) partitioned by key id; | |
| write output to nc1:"rttest/aggregate_max_empty_02.adm"; | |
| max( | |
| for $x in dataset('Test') | |
| return $x.val | |
| ) |