final aggregation over ()
    local exchange (GATHER, SINGLE, [])
        remote exchange (GATHER, SINGLE, [])
            partial aggregation over ()
                local exchange (GATHER, SINGLE, [])
                    join (RIGHT, PARTITIONED):
                        final aggregation over (wr_order_number)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, ["wr_order_number"])
                                    partial aggregation over (wr_order_number)
                                        scan web_returns
                        final aggregation over (ca_state, d_date, unique, web_company_name, ws_ext_ship_cost, ws_net_profit, ws_order_number, ws_ship_addr_sk, ws_ship_date_sk, ws_warehouse_sk, ws_web_site_sk)
                            local exchange (GATHER, SINGLE, [])
                                partial aggregation over (ca_state, d_date, unique, web_company_name, ws_ext_ship_cost, ws_net_profit, ws_order_number, ws_ship_addr_sk, ws_ship_date_sk, ws_warehouse_sk, ws_web_site_sk)
                                    join (RIGHT, PARTITIONED):
                                        remote exchange (REPARTITION, HASH, ["ws_order_number_20"])
                                            scan web_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPARTITION, HASH, ["ws_order_number"])
                                                join (INNER, REPLICATED):
                                                    join (INNER, REPLICATED):
                                                        join (INNER, REPLICATED):
                                                            scan web_sales
                                                            local exchange (GATHER, SINGLE, [])
                                                                remote exchange (REPLICATE, BROADCAST, [])
                                                                    scan date_dim (pushdown = true)
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (REPLICATE, BROADCAST, [])
                                                                scan customer_address (pushdown = true)
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan web_site (pushdown = true)
