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#35' and p_type not like 'MEDIUM BURNISHED%' and p_size in (26, 25, 40, 8, 33, 9, 46, 12) 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=411889.28..411958.33 rows=27620 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=402284.50..409851.83 rows=27620 width=40) Group Key: part.p_brand, part.p_type, part.p_size -> Sort (cost=402284.50..403742.72 rows=583291 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=54632.23..346423.14 rows=583291 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=50933.34..50933.34 rows=294613 width=40) -> Bitmap Heap Scan on part (cost=2468.51..50933.34 rows=294613 width=40) Recheck Cond: (p_size = ANY ('{26,25,40,8,33,9,46,12}'::integer[])) Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'MEDIUM BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_brin_idx (cost=0.00..2394.86 rows=317713 width=0) Index Cond: (p_size = ANY ('{26,25,40,8,33,9,46,12}'::integer[])) Planning time: 2.778 ms (19 rows) COMMIT; COMMIT