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#35' and p_type not like 'ECONOMY BURNISHED%' and p_size in (46, 50, 1, 33, 14, 12, 9, 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=412334.08..412403.47 rows=27756 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=402681.21..410285.62 rows=27756 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=402681.21..404146.58 rows=586148 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=54706.10..346525.58 rows=586148 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=50989.17..50989.17 rows=296056 width=40) -> Bitmap Heap Scan on part (cost=2481.67..50989.17 rows=296056 width=40) Recheck Cond: (p_size = ANY ('{46,50,1,33,14,12,9,36}'::integer[])) Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'ECONOMY BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_brin_idx (cost=0.00..2407.66 rows=319420 width=0) Index Cond: (p_size = ANY ('{46,50,1,33,14,12,9,36}'::integer[])) Planning time: 2.852 ms (19 rows) COMMIT; COMMIT