--
-- Licensed to the Apache Software Foundation (ASF) under one or more
-- contributor license agreements.  See the NOTICE file distributed with
-- this work for additional information regarding copyright ownership.
-- The ASF licenses this file to You under the Apache License, Version 2.0
-- (the "License"); you may not use this file except in compliance with
-- the License.  You may obtain a copy of the License at
--
--    http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- q20 --
select
       i_item_id,
       i_item_desc,
       i_category,
       i_class,
       i_current_price,
       sum(cs_ext_sales_price) as itemrevenue,
       sum(cs_ext_sales_price) * 100 / sum(sum(cs_ext_sales_price)) over (partition by i_class) as revenueratio
from
       catalog_sales,
       item,
       date_dim
where
       cs_item_sk = i_item_sk
       and i_category in ('Jewelry', 'Sports', 'Books')
       and cs_sold_date_sk = d_date_sk
       and d_date between cast('2001-01-12' as date)
       and (cast('2001-01-12' as date) + interval 30 days)
group by
       i_item_id,
       i_item_desc,
       i_category,
       i_class,
       i_current_price
order by
       i_category,
       i_class,
       i_item_id,
       i_item_desc,
       revenueratio
limit
       100;
