-- SINK_WRITE  |PARTITIONED|
  -- STREAM_PROJECT  |PARTITIONED|
    -- ASSIGN  |PARTITIONED|
      -- SORT_MERGE_EXCHANGE [$$31(ASC) ]  |PARTITIONED|
        -- STABLE_SORT [$$31(ASC)]  |LOCAL|
          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
            -- STREAM_PROJECT  |PARTITIONED|
              -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                -- PRE_CLUSTERED_GROUP_BY[$$27]  |PARTITIONED|
                        {
                          -- AGGREGATE  |LOCAL|
                            -- IN_MEMORY_STABLE_SORT [$$4(ASC)]  |LOCAL|
                              -- STREAM_SELECT  |LOCAL|
                                -- NESTED_TUPLE_SOURCE  |LOCAL|
                        }
                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                    -- STREAM_PROJECT  |PARTITIONED|
                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                        -- IN_MEMORY_HASH_JOIN [$$2][$$7]  |PARTITIONED|
                          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                            -- STREAM_PROJECT  |PARTITIONED|
                              -- UNNEST  |PARTITIONED|
                                -- ASSIGN  |PARTITIONED|
                                  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                    -- DATASOURCE_SCAN  |PARTITIONED|
                                      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                        -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
                          -- BROADCAST_EXCHANGE  |PARTITIONED|
                            -- RUNNING_AGGREGATE  |PARTITIONED|
                              -- STREAM_PROJECT  |PARTITIONED|
                                -- SORT_MERGE_EXCHANGE [$$28(ASC), $$7(ASC) ]  |PARTITIONED|
                                  -- STABLE_SORT [$$28(ASC), $$7(ASC)]  |LOCAL|
                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                      -- EXTERNAL_GROUP_BY[$$36]  |PARTITIONED|
                                              {
                                                -- AGGREGATE  |LOCAL|
                                                  -- NESTED_TUPLE_SOURCE  |LOCAL|
                                              }
                                        -- HASH_PARTITION_EXCHANGE [$$36]  |PARTITIONED|
                                          -- EXTERNAL_GROUP_BY[$$6]  |LOCAL|
                                                  {
                                                    -- AGGREGATE  |LOCAL|
                                                      -- NESTED_TUPLE_SOURCE  |LOCAL|
                                                  }
                                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                              -- STREAM_PROJECT  |PARTITIONED|
                                                -- UNNEST  |PARTITIONED|
                                                  -- ASSIGN  |PARTITIONED|
                                                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                      -- DATASOURCE_SCAN  |PARTITIONED|
                                                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                                          -- EMPTY_TUPLE_SOURCE  |PARTITIONED|