-- SINK_WRITE  |PARTITIONED|
  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
    -- STREAM_PROJECT  |PARTITIONED|
      -- STREAM_SELECT  |PARTITIONED|
        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
          -- BTREE_SEARCH  |PARTITIONED|
            -- ONE_TO_ONE_EXCHANGE  |LOCAL|
              -- STABLE_SORT [$$9(ASC)]  |LOCAL|
                -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                  -- STREAM_PROJECT  |PARTITIONED|
                    -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                      -- INVERTED_INDEX_SEARCH  |PARTITIONED|
                        -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
                          -- ASSIGN  |PARTITIONED|
                            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|