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with ss as (
select
i_manufact_id,sum(ss_ext_sales_price) total_sales
from
store_sales,
date_dim,
customer_address,
item
where
i_manufact_id in (select
i_manufact_id
from
item
where i_category in ('Books'))
and ss_item_sk = i_item_sk
and ss_sold_date_sk = d_date_sk
and d_year = 1999
and d_moy = 3
and ss_addr_sk = ca_address_sk
and ca_gmt_offset = -5
group by i_manufact_id),
cs as (
select
i_manufact_id,sum(cs_ext_sales_price) total_sales
from
catalog_sales,
date_dim,
customer_address,
item
where
i_manufact_id in (select
i_manufact_id
from
item
where i_category in ('Books'))
and cs_item_sk = i_item_sk
and cs_sold_date_sk = d_date_sk
and d_year = 1999
and d_moy = 3
and cs_bill_addr_sk = ca_address_sk
and ca_gmt_offset = -5
group by i_manufact_id),
ws as (
select
i_manufact_id,sum(ws_ext_sales_price) total_sales
from
web_sales,
date_dim,
customer_address,
item
where
i_manufact_id in (select
i_manufact_id
from
item
where i_category in ('Books'))
and ws_item_sk = i_item_sk
and ws_sold_date_sk = d_date_sk
and d_year = 1999
and d_moy = 3
and ws_bill_addr_sk = ca_address_sk
and ca_gmt_offset = -5
group by i_manufact_id)
select i_manufact_id ,sum(total_sales) total_sales
from (select * from ss
union all
select * from cs
union all
select * from ws) tmp1
group by i_manufact_id
order by total_sales
limit 100;
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