asterix-app/src/test/resources/optimizerts/results/btree-index/btree-primary-25.plan

-- SINK_WRITE  |PARTITIONED|
  -- RANDOM_MERGE_EXCHANGE  |PARTITIONED|
    -- STREAM_PROJECT  |PARTITIONED|
      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
        -- BTREE_SEARCH  |PARTITIONED|
          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
            -- ASSIGN  |PARTITIONED|
              -- EMPTY_TUPLE_SOURCE  |PARTITIONED|