final aggregation over ()
    local exchange (GATHER, SINGLE, [])
        remote exchange (GATHER, SINGLE, [])
            partial aggregation over ()
                join (INNER, REPLICATED):
                    scan customer_demographics
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPLICATE, BROADCAST, [])
                            join (INNER, PARTITIONED):
                                remote exchange (REPARTITION, HASH, ["hd_demo_sk"])
                                    scan household_demographics
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPARTITION, HASH, ["ss_hdemo_sk"])
                                        join (INNER, REPLICATED):
                                            join (INNER, REPLICATED):
                                                join (INNER, REPLICATED):
                                                    scan store_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan customer_address (pushdown = true)
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        scan date_dim (pushdown = true)
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    scan store
