remote exchange (GATHER, SINGLE, [])
    local exchange (GATHER, UNKNOWN, [])
        remote exchange (REPARTITION, ROUND_ROBIN, [])
            final aggregation over (cc_call_center_id, cc_manager, cc_name, cd_education_status, cd_marital_status)
                local exchange (GATHER, SINGLE, [])
                    remote exchange (REPARTITION, HASH, ["cc_call_center_id", "cc_manager", "cc_name", "cd_education_status", "cd_marital_status"])
                        partial aggregation over (cc_call_center_id, cc_manager, cc_name, cd_education_status, cd_marital_status)
                            join (INNER, REPLICATED):
                                scan call_center
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPLICATE, BROADCAST, [])
                                        join (INNER, REPLICATED):
                                            scan household_demographics
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    join (INNER, REPLICATED):
                                                        scan customer_demographics
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (REPLICATE, BROADCAST, [])
                                                                join (INNER, REPLICATED):
                                                                    scan date_dim
                                                                    local exchange (GATHER, SINGLE, [])
                                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                                            join (INNER, REPLICATED):
                                                                                scan catalog_returns
                                                                                local exchange (GATHER, SINGLE, [])
                                                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                                                        join (INNER, REPLICATED):
                                                                                            scan customer
                                                                                            local exchange (GATHER, SINGLE, [])
                                                                                                remote exchange (REPLICATE, BROADCAST, [])
                                                                                                    scan customer_address
