--
-- 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.
--
-- q90 --
select
     cast(amc as decimal(15, 4)) / cast(pmc as decimal(15, 4)) am_pm_ratio
from
     (
          select
               count(*) amc
          from
               web_sales,
               household_demographics,
               time_dim,
               web_page
          where
               ws_sold_time_sk = time_dim.t_time_sk
               and ws_ship_hdemo_sk = household_demographics.hd_demo_sk
               and ws_web_page_sk = web_page.wp_web_page_sk
               and time_dim.t_hour between 6
               and 6 + 1
               and household_demographics.hd_dep_count = 8
               and web_page.wp_char_count between 5000
               and 5200
     ) at,
     (
          select
               count(*) pmc
          from
               web_sales,
               household_demographics,
               time_dim,
               web_page
          where
               ws_sold_time_sk = time_dim.t_time_sk
               and ws_ship_hdemo_sk = household_demographics.hd_demo_sk
               and ws_web_page_sk = web_page.wp_web_page_sk
               and time_dim.t_hour between 14
               and 14 + 1
               and household_demographics.hd_dep_count = 8
               and web_page.wp_char_count between 5000
               and 5200
     ) pt
order by
     am_pm_ratio
limit
     100;
