local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        local exchange (GATHER, SINGLE, [])
            local exchange (REPARTITION, ROUND_ROBIN, [])
                final aggregation over (i_item_id, w_state)
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPARTITION, HASH, [i_item_id, w_state])
                            intermediate aggregation over (i_item_id, w_state)
                                join (INNER, REPLICATED):
                                    join (INNER, REPLICATED):
                                        partial aggregation over (cs_item_sk, cs_warehouse_sk)
                                            join (INNER, REPLICATED):
                                                join (LEFT, PARTITIONED):
                                                    remote exchange (REPARTITION, HASH, [cs_item_sk, cs_order_number])
                                                        dynamic filter (cs_item_sk::EQUAL, cs_sold_date_sk::EQUAL, cs_warehouse_sk::EQUAL)
                                                            scan catalog_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPARTITION, HASH, [cr_item_sk, cr_order_number])
                                                            dynamic filter (cr_item_sk::EQUAL)
                                                                scan catalog_returns
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        scan date_dim
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                scan item
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            scan warehouse
