--!syntax_pg
--TPC-H 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 
plato."orders", 
plato."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
order by 
l_shipmode;