remote exchange (GATHER, SINGLE, [])
    local exchange (GATHER, UNKNOWN, [])
        remote exchange (REPARTITION, ROUND_ROBIN, [])
            join (INNER, PARTITIONED):
                join (INNER, PARTITIONED):
                    join (INNER, PARTITIONED):
                        final aggregation over (ca_county_81)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, [ca_county_81])
                                    partial aggregation over (ca_county_81)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, [ss_addr_sk_29])
                                                join (INNER, REPLICATED):
                                                    scan store_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, [ca_address_sk_74])
                                                    scan customer_address
                        final aggregation over (ca_county_173)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, [ca_county_173])
                                    partial aggregation over (ca_county_173)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, [ss_addr_sk_121])
                                                join (INNER, REPLICATED):
                                                    scan store_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, [ca_address_sk_166])
                                                    scan customer_address
                    join (INNER, PARTITIONED):
                        final aggregation over (ca_county_345)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, [ca_county_345])
                                    partial aggregation over (ca_county_345)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, [ws_bill_addr_sk_283])
                                                join (INNER, REPLICATED):
                                                    scan web_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, [ca_address_sk_338])
                                                    scan customer_address
                        final aggregation over (ca_county_448)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, [ca_county_448])
                                    partial aggregation over (ca_county_448)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, [ws_bill_addr_sk_386])
                                                join (INNER, REPLICATED):
                                                    scan web_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, [ca_address_sk_441])
                                                    scan customer_address
                join (INNER, PARTITIONED):
                    final aggregation over (ca_county)
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, [ca_county])
                                partial aggregation over (ca_county)
                                    join (INNER, PARTITIONED):
                                        remote exchange (REPARTITION, HASH, [ss_addr_sk])
                                            join (INNER, REPLICATED):
                                                scan store_sales
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        scan date_dim
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPARTITION, HASH, [ca_address_sk])
                                                scan customer_address
                    final aggregation over (ca_county_242)
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, [ca_county_242])
                                partial aggregation over (ca_county_242)
                                    join (INNER, PARTITIONED):
                                        remote exchange (REPARTITION, HASH, [ws_bill_addr_sk])
                                            join (INNER, REPLICATED):
                                                scan web_sales
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        scan date_dim
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPARTITION, HASH, [ca_address_sk_235])
                                                scan customer_address
