remote exchange (GATHER, SINGLE, [])
    cross join:
        cross join:
            cross join:
                cross join:
                    cross join:
                        cross join:
                            cross join:
                                cross join:
                                    cross join:
                                        cross join:
                                            cross join:
                                                cross join:
                                                    cross join:
                                                        cross join:
                                                            cross join:
                                                                scan reason
                                                                local exchange (GATHER, SINGLE, [])
                                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                                        final hashaggregation over ()
                                                                            local exchange (GATHER, SINGLE, [])
                                                                                remote exchange (GATHER, SINGLE, [])
                                                                                    partial hashaggregation over ()
                                                                                        scan store_sales
                                                            local exchange (GATHER, SINGLE, [])
                                                                remote exchange (REPLICATE, BROADCAST, [])
                                                                    final hashaggregation over ()
                                                                        local exchange (GATHER, SINGLE, [])
                                                                            remote exchange (GATHER, SINGLE, [])
                                                                                partial hashaggregation over ()
                                                                                    scan store_sales
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (REPLICATE, BROADCAST, [])
                                                                final hashaggregation over ()
                                                                    local exchange (GATHER, SINGLE, [])
                                                                        remote exchange (GATHER, SINGLE, [])
                                                                            partial hashaggregation over ()
                                                                                scan store_sales
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (REPLICATE, BROADCAST, [])
                                                            final hashaggregation over ()
                                                                local exchange (GATHER, SINGLE, [])
                                                                    remote exchange (GATHER, SINGLE, [])
                                                                        partial hashaggregation over ()
                                                                            scan store_sales
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (REPLICATE, BROADCAST, [])
                                                        final hashaggregation over ()
                                                            local exchange (GATHER, SINGLE, [])
                                                                remote exchange (GATHER, SINGLE, [])
                                                                    partial hashaggregation over ()
                                                                        scan store_sales
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (REPLICATE, BROADCAST, [])
                                                    final hashaggregation over ()
                                                        local exchange (GATHER, SINGLE, [])
                                                            remote exchange (GATHER, SINGLE, [])
                                                                partial hashaggregation over ()
                                                                    scan store_sales
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (REPLICATE, BROADCAST, [])
                                                final hashaggregation over ()
                                                    local exchange (GATHER, SINGLE, [])
                                                        remote exchange (GATHER, SINGLE, [])
                                                            partial hashaggregation over ()
                                                                scan store_sales
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (REPLICATE, BROADCAST, [])
                                            final hashaggregation over ()
                                                local exchange (GATHER, SINGLE, [])
                                                    remote exchange (GATHER, SINGLE, [])
                                                        partial hashaggregation over ()
                                                            scan store_sales
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (REPLICATE, BROADCAST, [])
                                        final hashaggregation over ()
                                            local exchange (GATHER, SINGLE, [])
                                                remote exchange (GATHER, SINGLE, [])
                                                    partial hashaggregation over ()
                                                        scan store_sales
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (REPLICATE, BROADCAST, [])
                                    final hashaggregation over ()
                                        local exchange (GATHER, SINGLE, [])
                                            remote exchange (GATHER, SINGLE, [])
                                                partial hashaggregation over ()
                                                    scan store_sales
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (REPLICATE, BROADCAST, [])
                                final hashaggregation over ()
                                    local exchange (GATHER, SINGLE, [])
                                        remote exchange (GATHER, SINGLE, [])
                                            partial hashaggregation over ()
                                                scan store_sales
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (REPLICATE, BROADCAST, [])
                            final hashaggregation over ()
                                local exchange (GATHER, SINGLE, [])
                                    remote exchange (GATHER, SINGLE, [])
                                        partial hashaggregation over ()
                                            scan store_sales
                local exchange (GATHER, SINGLE, [])
                    remote exchange (REPLICATE, BROADCAST, [])
                        final hashaggregation over ()
                            local exchange (GATHER, SINGLE, [])
                                remote exchange (GATHER, SINGLE, [])
                                    partial hashaggregation over ()
                                        scan store_sales
            local exchange (GATHER, SINGLE, [])
                remote exchange (REPLICATE, BROADCAST, [])
                    final hashaggregation over ()
                        local exchange (GATHER, SINGLE, [])
                            remote exchange (GATHER, SINGLE, [])
                                partial hashaggregation over ()
                                    scan store_sales
        local exchange (GATHER, SINGLE, [])
            remote exchange (REPLICATE, BROADCAST, [])
                final hashaggregation over ()
                    local exchange (GATHER, SINGLE, [])
                        remote exchange (GATHER, SINGLE, [])
                            partial hashaggregation over ()
                                scan store_sales
