final aggregation over ()
    local exchange (GATHER, SINGLE, [])
        remote exchange (GATHER, SINGLE, [])
            partial aggregation over ()
                join (FULL, PARTITIONED):
                    final aggregation over (ss_customer_sk, ss_item_sk)
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, ["ss_customer_sk", "ss_item_sk"])
                                partial aggregation over (ss_customer_sk, ss_item_sk)
                                    join (INNER, REPLICATED):
                                        scan store_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                scan date_dim (pushdown = true)
                    final aggregation over (cs_bill_customer_sk, cs_item_sk)
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, ["cs_bill_customer_sk", "cs_item_sk"])
                                partial aggregation over (cs_bill_customer_sk, cs_item_sk)
                                    join (INNER, REPLICATED):
                                        scan catalog_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                scan date_dim (pushdown = true)
