final aggregation over ()
    local exchange (GATHER, SINGLE, [])
        remote exchange (GATHER, SINGLE, [])
            partial aggregation over ()
                join (INNER, PARTITIONED):
                    remote exchange (REPARTITION, HASH, ["ss_sold_time_sk"])
                        join (INNER, REPLICATED):
                            join (INNER, REPLICATED):
                                scan store_sales
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPLICATE, BROADCAST, [])
                                        scan household_demographics (pushdown = true)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPLICATE, BROADCAST, [])
                                    scan store (pushdown = true)
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPARTITION, HASH, ["t_time_sk"])
                            scan time_dim (pushdown = true)
