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_85, d_qoy_59, d_year_55)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, ["ca_county_85", "d_qoy_59", "d_year_55"])
                                    partial aggregation over (ca_county_85, d_qoy_59, d_year_55)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, ["ss_addr_sk_31"])
                                                join (INNER, REPLICATED):
                                                    scan store_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim (pushdown = true)
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, ["ca_address_sk_78"])
                                                    scan customer_address
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, ["ca_county_180", NullableValue{type=integer, value=2000}, NullableValue{type=integer, value=2}])
                                final aggregation over (ca_county_180, d_qoy_154, d_year_150)
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPARTITION, HASH, ["ca_county_180", "d_qoy_154", "d_year_150"])
                                            partial aggregation over (ca_county_180, d_qoy_154, d_year_150)
                                                join (INNER, PARTITIONED):
                                                    remote exchange (REPARTITION, HASH, ["ss_addr_sk_126"])
                                                        join (INNER, REPLICATED):
                                                            scan store_sales
                                                            local exchange (GATHER, SINGLE, [])
                                                                remote exchange (REPLICATE, BROADCAST, [])
                                                                    scan date_dim (pushdown = true)
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPARTITION, HASH, ["ca_address_sk_173"])
                                                            scan customer_address
                    join (INNER, PARTITIONED):
                        final aggregation over (ca_county_358, d_qoy_332, d_year_328)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, ["ca_county_358", "d_qoy_332", "d_year_328"])
                                    partial aggregation over (ca_county_358, d_qoy_332, d_year_328)
                                        join (INNER, PARTITIONED):
                                            remote exchange (REPARTITION, HASH, ["ws_bill_addr_sk_294"])
                                                join (INNER, REPLICATED):
                                                    scan web_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            scan date_dim (pushdown = true)
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPARTITION, HASH, ["ca_address_sk_351"])
                                                    scan customer_address
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, ["ca_county_464", NullableValue{type=integer, value=2000}, NullableValue{type=integer, value=2}])
                                final aggregation over (ca_county_464, d_qoy_438, d_year_434)
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPARTITION, HASH, ["ca_county_464", "d_qoy_438", "d_year_434"])
                                            partial aggregation over (ca_county_464, d_qoy_438, d_year_434)
                                                join (INNER, PARTITIONED):
                                                    remote exchange (REPARTITION, HASH, ["ws_bill_addr_sk_400"])
                                                        join (INNER, REPLICATED):
                                                            scan web_sales
                                                            local exchange (GATHER, SINGLE, [])
                                                                remote exchange (REPLICATE, BROADCAST, [])
                                                                    scan date_dim (pushdown = true)
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPARTITION, HASH, ["ca_address_sk_457"])
                                                            scan customer_address
                local exchange (GATHER, SINGLE, [])
                    remote exchange (REPARTITION, HASH, ["ca_county", NullableValue{type=integer, value=2000}, NullableValue{type=integer, value=2}])
                        join (INNER, PARTITIONED):
                            final aggregation over (ca_county, d_qoy, d_year)
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPARTITION, HASH, ["ca_county", "d_qoy", "d_year"])
                                        partial aggregation over (ca_county, d_qoy, d_year)
                                            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 (pushdown = true)
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPARTITION, HASH, ["ca_address_sk"])
                                                        scan customer_address
                            final aggregation over (ca_county_252, d_qoy_226, d_year_222)
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPARTITION, HASH, ["ca_county_252", "d_qoy_226", "d_year_222"])
                                        partial aggregation over (ca_county_252, d_qoy_226, d_year_222)
                                            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 (pushdown = true)
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPARTITION, HASH, ["ca_address_sk_245"])
                                                        scan customer_address
