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#34' and p_type not like 'PROMO BURNISHED%' and p_size in (17, 39, 2, 27, 47, 12, 33, 30) 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=456709.00..456778.70 rows=27879 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=446937.63..454650.57 rows=27879 width=40) -> Sort (cost=446937.63..448424.46 rows=594732 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=57991.92..389897.24 rows=594732 width=40) Hash Cond: (partsupp.ps_partkey = part.p_partkey) -> Seq Scan on partsupp (cost=8.48..270966.48 rows=4000000 width=8) Filter: (NOT (hashed SubPlan 1)) SubPlan 1 -> Index Scan using supplier_s_suppkey_idx_like on supplier (cost=0.00..8.45 rows=10 width=4) -> Hash (cost=54266.37..54266.37 rows=297366 width=40) -> Bitmap Heap Scan on part (cost=5738.37..54266.37 rows=297366 width=40) Recheck Cond: (p_size = ANY ('{17,39,2,27,47,12,33,30}'::integer[])) Filter: ((p_brand <> 'Brand#34'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5664.03 rows=320240 width=0) Index Cond: (p_size = ANY ('{17,39,2,27,47,12,33,30}'::integer[])) (17 rows) COMMIT; COMMIT