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#25' and p_type not like 'STANDARD BRUSHED%' and p_size in (15, 7, 27, 39, 11, 8, 31, 26) 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=456182.14..456251.45 rows=27725 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=446467.98..454136.18 rows=27725 width=40) -> Sort (cost=446467.98..447946.17 rows=591276 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=57913.15..389783.91 rows=591276 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=54208.14..54208.14 rows=295723 width=40) -> Bitmap Heap Scan on part (cost=5724.64..54208.14 rows=295723 width=40) Recheck Cond: (p_size = ANY ('{15,7,27,39,11,8,31,26}'::integer[])) Filter: ((p_brand <> 'Brand#25'::bpchar) AND ((p_type)::text !~~ 'STANDARD BRUSHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5650.71 rows=318460 width=0) Index Cond: (p_size = ANY ('{15,7,27,39,11,8,31,26}'::integer[])) (17 rows) COMMIT; COMMIT