| -- SINK_WRITE |PARTITIONED| | |
| -- RANDOM_MERGE_EXCHANGE |PARTITIONED| | |
| -- STREAM_PROJECT |PARTITIONED| | |
| -- ASSIGN |PARTITIONED| | |
| -- ONE_TO_ONE_EXCHANGE |PARTITIONED| | |
| -- PRE_SORTED_GROUP_BY[$$21] |PARTITIONED| | |
| { | |
| -- AGGREGATE |LOCAL| | |
| -- NESTED_TUPLE_SOURCE |LOCAL| | |
| } | |
| -- ONE_TO_ONE_EXCHANGE |PARTITIONED| | |
| -- STABLE_SORT [$$21(ASCENDING)] |PARTITIONED| | |
| -- HASH_PARTITION_EXCHANGE [$$21] |PARTITIONED| | |
| -- ASSIGN |PARTITIONED| | |
| -- ASSIGN |PARTITIONED| | |
| -- AQL_DATASET_UNNEST |PARTITIONED| | |
| -- EMPTY_TUPLE_SOURCE |PARTITIONED| |