core/sql/qms/debug/f10

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obey regr.init;
-- Q14
    select l_shipdate,
        100.00 * sum(
        case when p_type like 'PROMO%'
        then cast((l_extendedprice*(1-l_discount)) as numeric(18,3))
        else 0 end)
        / cast(sum((l_extendedprice*(1-l_discount))) as numeric(18,3))
        as promo_revenue
    from lineitem, part
    where
        l_partkey = p_partkey
        and l_shipdate >= date '1995-09-01'
        and l_shipdate < date '1995-09-01' + interval '1' month
    group by l_shipdate;