local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        join (INNER, PARTITIONED):
            remote exchange (REPARTITION, HASH, [suppkey_4])
                join (INNER, PARTITIONED):
                    remote exchange (REPARTITION, HASH, [partkey_3])
                        scan partsupp
                    join (INNER, PARTITIONED):
                        final aggregation over (partkey_15)
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPARTITION, HASH, [partkey_15])
                                    partial aggregation over (partkey_15)
                                        join (INNER, REPLICATED):
                                            scan partsupp
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    join (INNER, REPLICATED):
                                                        scan supplier
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (REPLICATE, BROADCAST, [])
                                                                join (INNER, REPLICATED):
                                                                    scan nation
                                                                    local exchange (GATHER, SINGLE, [])
                                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                                            scan region
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, [partkey])
                                scan part
            local exchange (GATHER, SINGLE, [])
                remote exchange (REPARTITION, HASH, [suppkey])
                    join (INNER, REPLICATED):
                        scan supplier
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPLICATE, BROADCAST, [])
                                join (INNER, REPLICATED):
                                    scan nation
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            scan region
