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#23' and p_type not like 'SMALL POLISHED%' and p_size in (33, 19, 18, 12, 1, 15, 41, 35) 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=415797.73..415866.99 rows=27703 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=406123.56..413753.56 rows=27703 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=406123.56..407594.15 rows=588238 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=57912.21..349752.59 rows=588238 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=54202.34..54202.34 rows=295492 width=40) -> Bitmap Heap Scan on part (cost=5724.16..54202.34 rows=295492 width=40) Recheck Cond: (p_size = ANY ('{33,19,18,12,1,15,41,35}'::integer[])) Filter: ((p_brand <> 'Brand#23'::bpchar) AND ((p_type)::text !~~ 'SMALL POLISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5650.29 rows=318247 width=0) Index Cond: (p_size = ANY ('{33,19,18,12,1,15,41,35}'::integer[])) Planning time: 5.015 ms (19 rows) COMMIT; COMMIT