local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        join (INNER, REPLICATED):
            join (INNER, REPLICATED):
                final aggregation over (ca_state, wr_returning_customer_sk)
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPARTITION, HASH, [ca_state, wr_returning_customer_sk])
                            partial aggregation over (ca_state, wr_returning_customer_sk)
                                join (INNER, PARTITIONED):
                                    remote exchange (REPARTITION, HASH, [wr_returning_addr_sk])
                                        join (INNER, REPLICATED):
                                            scan web_returns
                                            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
                local exchange (GATHER, SINGLE, [])
                    remote exchange (REPLICATE, BROADCAST, [])
                        join (INNER, REPLICATED):
                            scan customer
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPLICATE, BROADCAST, [])
                                    scan customer_address
            local exchange (GATHER, SINGLE, [])
                remote exchange (REPLICATE, BROADCAST, [])
                    final aggregation over (ca_state_90)
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPARTITION, HASH, [ca_state_90])
                                partial aggregation over (ca_state_90)
                                    final aggregation over (ca_state_90, wr_returning_customer_sk_37)
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPARTITION, HASH, [ca_state_90, wr_returning_customer_sk_37])
                                                partial aggregation over (ca_state_90, wr_returning_customer_sk_37)
                                                    join (INNER, PARTITIONED):
                                                        remote exchange (REPARTITION, HASH, [wr_returning_addr_sk_40])
                                                            join (INNER, REPLICATED):
                                                                scan web_returns
                                                                local exchange (GATHER, SINGLE, [])
                                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                                        scan date_dim
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (REPARTITION, HASH, [ca_address_sk_82])
                                                                scan customer_address
