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#43' and p_type not like 'STANDARD BURNISHED%' and p_size in (40, 11, 36, 20, 26, 46, 44, 43) 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=416348.31..416417.99 rows=27869 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=406614.98..414290.69 rows=27869 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=406614.98..408094.38 rows=591762 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58005.19..349880.81 rows=591762 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=54273.19..54273.19 rows=297262 width=40) -> Bitmap Heap Scan on part (cost=5740.86..54273.19 rows=297262 width=40) Recheck Cond: (p_size = ANY ('{40,11,36,20,26,46,44,43}'::integer[])) Filter: ((p_brand <> 'Brand#43'::bpchar) AND ((p_type)::text !~~ 'STANDARD BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5666.55 rows=320413 width=0) Index Cond: (p_size = ANY ('{40,11,36,20,26,46,44,43}'::integer[])) Planning time: 4.820 ms (19 rows) COMMIT; COMMIT