text: SET SCHEMA ##SCHEMA##;
  elapsedtime on;
  -- TPC-DS QUERY 40
  ##EXPLAIN##
  select top 100 
     w_state
    ,i_item_id
    ,sum(case when (cast(d_date as date) < cast ('1998-04-08' as date)) 
   		then cs_sales_price - coalesce(cr_refunded_cash,0) else 0 end) as sales_before
    ,sum(case when (cast(d_date as date) >= cast ('1998-04-08' as date)) 
   		then cs_sales_price - coalesce(cr_refunded_cash,0) else 0 end) as sales_after
   from
     catalog_sales left outer join catalog_returns on
         (cs_order_number = cr_order_number 
          and cs_item_sk = cr_item_sk)
    ,warehouse 
    ,item
    ,date_dim
   where
       i_current_price between 0.99 and 1.49
   and i_item_sk          = cs_item_sk
   and cs_warehouse_sk    = w_warehouse_sk 
   and cs_sold_date_sk    = d_date_sk
   and d_date between (cast ('1998-04-08' as date) - 30)
                  and (cast ('1998-04-08' as date) + 30) 
   group by
      w_state,i_item_id
   order by w_state,i_item_id
  ;
  