local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        final aggregation over (cc_name, sm_type, substr)
            local exchange (GATHER, SINGLE, [])
                remote exchange (REPARTITION, HASH, ["cc_name", "sm_type", "substr"])
                    partial aggregation over (cc_name, sm_type, substr)
                        join (INNER, REPLICATED):
                            join (INNER, REPLICATED):
                                join (INNER, REPLICATED):
                                    join (INNER, REPLICATED):
                                        scan catalog_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                scan date_dim
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            scan ship_mode
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPLICATE, BROADCAST, [])
                                        scan warehouse
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPLICATE, BROADCAST, [])
                                    scan call_center
