local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        final aggregation over (i_item_id)
            local exchange (GATHER, SINGLE, [])
                remote exchange (REPARTITION, HASH, ["i_item_id"])
                    partial aggregation over (i_item_id)
                        join (INNER, PARTITIONED):
                            remote exchange (REPARTITION, HASH, ["cs_item_sk"])
                                join (INNER, PARTITIONED):
                                    remote exchange (REPARTITION, HASH, ["cs_bill_cdemo_sk"])
                                        join (INNER, REPLICATED):
                                            join (INNER, REPLICATED):
                                                scan catalog_sales
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        scan date_dim (pushdown = true)
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    scan promotion (pushdown = true)
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPARTITION, HASH, ["cd_demo_sk"])
                                            scan customer_demographics (pushdown = true)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, ["i_item_sk"])
                                    scan item
