BEGIN; BEGIN EXPLAIN select s_name, s_address from supplier, nation where s_suppkey in ( select ps_suppkey from partsupp where ps_partkey in ( select p_partkey from part where p_name like 'deep%' ) and ps_availqty > ( select 0.5 * sum(l_quantity) from lineitem where l_partkey = ps_partkey and l_suppkey = ps_suppkey and l_shipdate >= '1997-01-01' and l_shipdate < cast(date '1997-01-01' + interval '1 year' as date) ) ) and s_nationkey = n_nationkey and n_name = 'INDONESIA' order by s_name; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Sort (cost=11672042.14..11672045.05 rows=1163 width=51) Sort Key: supplier.s_name -> Hash Semi Join (cost=11669642.81..11671982.92 rows=1163 width=51) Hash Cond: (supplier.s_suppkey = partsupp.ps_suppkey) -> Nested Loop (cost=43.00..2355.31 rows=4000 width=55) -> Seq Scan on nation (cost=0.00..1.31 rows=1 width=4) Filter: (n_name = 'INDONESIA'::bpchar) -> Bitmap Heap Scan on supplier (cost=43.00..2314.00 rows=4000 width=59) Recheck Cond: (s_nationkey = nation.n_nationkey) -> Bitmap Index Scan on supplier_s_nationkey_s_suppkey_brin_idx (cost=0.00..42.00 rows=4000 width=0) Index Cond: (s_nationkey = nation.n_nationkey) -> Hash (cost=11669236.47..11669236.47 rows=29067 width=4) -> Nested Loop (cost=754.49..11669236.47 rows=29067 width=4) -> Bitmap Heap Scan on part (cost=754.06..34891.52 rows=22022 width=4) Filter: ((p_name)::text ~~ 'deep%'::text) -> Bitmap Index Scan on part_p_name_idx (cost=0.00..748.55 rows=20000 width=0) Index Cond: (((p_name)::text >= 'deep'::text) AND ((p_name)::text < 'deeq'::text)) -> Index Scan using pk_partsupp on partsupp (cost=0.43..528.30 rows=1 width=8) Index Cond: (ps_partkey = part.p_partkey) Filter: ((ps_availqty)::double precision > (SubPlan 1)) SubPlan 1 -> Aggregate (cost=129.34..129.35 rows=1 width=4) -> Index Scan using lineitem_l_partkey_l_quantity_idx on lineitem (cost=0.56..129.34 rows=1 width=4) Index Cond: (l_partkey = partsupp.ps_partkey) Filter: ((l_shipdate >= '1997-01-01'::date) AND (l_shipdate < '1998-01-01'::date) AND (l_suppkey = partsupp.ps_suppkey)) Planning time: 3.748 ms (26 rows) COMMIT; COMMIT