BEGIN; BEGIN EXPLAIN select p_brand, p_type, p_size, count(distinct ps_suppkey) as supplier_cnt from partsupp, part where p_partkey = ps_partkey and p_brand <> 'Brand#41' and p_type not like 'PROMO BURNISHED%' and p_size in (44, 15, 49, 30, 46, 22, 47, 36) and ps_suppkey not in ( select s_suppkey from supplier where s_comment like '%Customer%Complaints%' ) group by p_brand, p_type, p_size order by supplier_cnt desc, p_brand, p_type, p_size; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Sort (cost=416987.46..417057.34 rows=27951 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=407190.16..414923.20 rows=27951 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=407190.16..408680.87 rows=596282 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58069.10..349989.92 rows=596282 width=40) Hash Cond: (partsupp.ps_partkey = part.p_partkey) -> Seq Scan on partsupp (cost=16.23..270974.23 rows=4000000 width=8) Filter: (NOT (hashed SubPlan 1)) SubPlan 1 -> Index Scan using supplier_s_suppkey_idx_like on supplier (cost=0.14..15.98 rows=100 width=4) -> Hash (cost=54326.11..54326.11 rows=298141 width=40) -> Bitmap Heap Scan on part (cost=5774.78..54326.11 rows=298141 width=40) Recheck Cond: (p_size = ANY ('{44,15,49,30,46,22,47,36}'::integer[])) Filter: ((p_brand <> 'Brand#41'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5700.25 rows=321173 width=0) Index Cond: (p_size = ANY ('{44,15,49,30,46,22,47,36}'::integer[])) Planning time: 3.012 ms (19 rows) COMMIT; COMMIT