local exchange (GATHER, SINGLE, [])
    remote exchange (GATHER, SINGLE, [])
        local exchange (GATHER, SINGLE, [])
            remote exchange (REPARTITION, HASH, ["i_brand", "i_category", "s_company_name", "s_store_name"])
                final hashaggregation over (d_moy, i_brand, i_category, i_class, s_company_name, s_store_name)
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPARTITION, HASH, ["d_moy", "i_brand", "i_category", "i_class", "s_company_name", "s_store_name"])
                            partial hashaggregation over (d_moy, i_brand, i_category, i_class, s_company_name, s_store_name)
                                join (INNER, REPLICATED):
                                    join (INNER, REPLICATED):
                                        join (INNER, REPLICATED):
                                            scan store_sales
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    scan item
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                scan date_dim
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            scan store
