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#45' and p_type not like 'STANDARD BRUSHED%' and p_size in (15, 17, 32, 30, 20, 37, 39, 42) 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=417008.23..417078.12 rows=27953 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=407210.30..414943.80 rows=27953 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=407210.30..408701.09 rows=596318 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58085.16..350006.34 rows=596318 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=54341.95..54341.95 rows=298159 width=40) -> Bitmap Heap Scan on part (cost=5778.45..54341.95 rows=298159 width=40) Recheck Cond: (p_size = ANY ('{15,17,32,30,20,37,39,42}'::integer[])) Filter: ((p_brand <> 'Brand#45'::bpchar) AND ((p_type)::text !~~ 'STANDARD BRUSHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5703.91 rows=321660 width=0) Index Cond: (p_size = ANY ('{15,17,32,30,20,37,39,42}'::integer[])) Planning time: 3.397 ms (19 rows) COMMIT; COMMIT