local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        local exchange (GATHER, SINGLE, [])
            local exchange (REPARTITION, ROUND_ROBIN, [])
                final aggregation over (ss_customer_sk)
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPARTITION, HASH, [ss_customer_sk])
                            partial aggregation over (ss_customer_sk)
                                join (INNER, REPLICATED):
                                    join (INNER, PARTITIONED):
                                        remote exchange (REPARTITION, HASH, [ss_item_sk, ss_ticket_number])
                                            dynamic filter (ss_item_sk::EQUAL, ss_ticket_number::EQUAL)
                                                scan store_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPARTITION, HASH, [sr_item_sk, sr_ticket_number])
                                                dynamic filter (sr_reason_sk::EQUAL)
                                                    scan store_returns
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            scan reason
