-- SINK_WRITE  |PARTITIONED|
  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
    -- STREAM_PROJECT  |PARTITIONED|
      -- ASSIGN  |PARTITIONED|
        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
          -- PRE_CLUSTERED_GROUP_BY[$$22, $$23]  |PARTITIONED|
                  {
                    -- AGGREGATE  |LOCAL|
                      -- STREAM_SELECT  |LOCAL|
                        -- NESTED_TUPLE_SOURCE  |LOCAL|
                  }
            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
              -- STABLE_SORT [$$22(ASC), $$23(ASC)]  |LOCAL|
                -- HASH_PARTITION_EXCHANGE [$$22, $$23]  |PARTITIONED|
                  -- STREAM_PROJECT  |PARTITIONED|
                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                      -- HYBRID_HASH_JOIN [$$24, $$22, $$28][$$25, $$19, $$20]  |PARTITIONED|
                        -- HASH_PARTITION_EXCHANGE [$$24, $$22, $$28]  |PARTITIONED|
                          -- ASSIGN  |PARTITIONED|
                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                              -- DATASOURCE_SCAN  |PARTITIONED|
                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
                        -- HASH_PARTITION_EXCHANGE [$$25, $$19, $$20]  |PARTITIONED|
                          -- ASSIGN  |PARTITIONED|
                            -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                              -- DATASOURCE_SCAN  |PARTITIONED|
                                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                                  -- EMPTY_TUPLE_SOURCE  |PARTITIONED|