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#12' and p_type not like 'STANDARD PLATED%' and p_size in (23, 43, 21, 36, 35, 3, 16, 4) 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=415806.17..415875.19 rows=27607 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=406131.85..413769.77 rows=27607 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=406131.85..407604.22 rows=588948 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=57840.24..349687.72 rows=588948 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=54143.09..54143.09 rows=294474 width=40) -> Bitmap Heap Scan on part (cost=5688.77..54143.09 rows=294474 width=40) Recheck Cond: (p_size = ANY ('{23,43,21,36,35,3,16,4}'::integer[])) Filter: ((p_brand <> 'Brand#12'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5615.15 rows=317293 width=0) Index Cond: (p_size = ANY ('{23,43,21,36,35,3,16,4}'::integer[])) Planning time: 2.856 ms (19 rows) COMMIT; COMMIT