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#51' and p_type not like 'STANDARD PLATED%' and p_size in (28, 38, 11, 3, 42, 43, 5, 39) 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=417170.80..417240.82 rows=28007 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=407353.57..415101.99 rows=28007 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=407353.57..408847.24 rows=597468 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58098.31..350030.99 rows=597468 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=54347.91..54347.91 rows=298734 width=40) -> Bitmap Heap Scan on part (cost=5779.91..54347.91 rows=298734 width=40) Recheck Cond: (p_size = ANY ('{28,38,11,3,42,43,5,39}'::integer[])) Filter: ((p_brand <> 'Brand#51'::bpchar) AND ((p_type)::text !~~ 'STANDARD PLATED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5705.23 rows=321840 width=0) Index Cond: (p_size = ANY ('{28,38,11,3,42,43,5,39}'::integer[])) Planning time: 2.877 ms (19 rows) COMMIT; COMMIT