tools/tpch-tools/queries/q20.sql

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-- Modified

select /*+SET_VAR(exec_mem_limit=8589934592, parallel_fragment_exec_instance_num=2, enable_vectorized_engine=true, batch_size=4096, disable_join_reorder=true, enable_cost_based_join_reorder=true, enable_projection=true, runtime_bloom_filter_size=551943) */
s_name, s_address from
supplier left semi join
(
    select * from
    (
        select l_partkey,l_suppkey, 0.5 * sum(l_quantity) as l_q
        from lineitem
        where l_shipdate >= date '1994-01-01'
            and l_shipdate < date '1994-01-01' + interval '1' year
        group by l_partkey,l_suppkey
    ) t2 join
    (
        select ps_partkey, ps_suppkey, ps_availqty
        from partsupp left semi join part
        on ps_partkey = p_partkey and p_name like 'forest%'
    ) t1
    on t2.l_partkey = t1.ps_partkey and t2.l_suppkey = t1.ps_suppkey
    and t1.ps_availqty > t2.l_q
) t3
on s_suppkey = t3.ps_suppkey
join nation
where s_nationkey = n_nationkey
    and n_name = 'CANADA'
order by s_name;