-- @@@ START COPYRIGHT @@@
--
-- 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.
--
-- @@@ END COPYRIGHT @@@
obey regr.init;
-- Q12
    select
        l_shipmode, 
        sum (case when o_orderpriority ='1-URGENT'
        or o_orderpriority ='2-HIGH'
        then 1 else 0 end) as high_line_count,
        sum (case when o_orderpriority <> '1-URGENT'
        and o_orderpriority <> '2-HIGH'
        then 1 else 0 end) as low_line_count
    from orders,lineitem
    where 
        o_orderkey = l_orderkey
        and l_shipmode in ('MAIL','SHIP')
        and l_commitdate < l_receiptdate
        and l_shipdate < l_commitdate
        and l_receiptdate >= date '1994-01-01'
        and l_receiptdate < date '1994-01-01' + interval '1' year
    group by l_shipmode;
