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#24' and p_type not like 'PROMO BURNISHED%' and p_size in (29, 19, 2, 36, 24, 48, 11, 17) 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=456757.01..456827.03 rows=28009 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=446980.45..454688.04 rows=28009 width=40) -> Sort (cost=446980.45..448465.95 rows=594200 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58094.92..389994.92 rows=594200 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=54351.92..54351.92 rows=298762 width=40) -> Bitmap Heap Scan on part (cost=5779.92..54351.92 rows=298762 width=40) Recheck Cond: (p_size = ANY ('{29,19,2,36,24,48,11,17}'::integer[])) Filter: ((p_brand <> 'Brand#24'::bpchar) AND ((p_type)::text !~~ 'PROMO BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5705.23 rows=322000 width=0) Index Cond: (p_size = ANY ('{29,19,2,36,24,48,11,17}'::integer[])) (17 rows) COMMIT; COMMIT