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#55' and p_type not like 'LARGE BURNISHED%' and p_size in (33, 29, 37, 47, 38, 49, 25, 36) 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=456697.01..456766.92 rows=27964 width=40) Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size -> GroupAggregate (cost=446927.36..454631.69 rows=27964 width=40) -> Sort (cost=446927.36..448412.30 rows=593975 width=40) Sort Key: part.p_brand, part.p_type, part.p_size -> Hash Join (cost=58067.28..389965.03 rows=593975 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=54330.38..54330.38 rows=298274 width=40) -> Bitmap Heap Scan on part (cost=5774.88..54330.38 rows=298274 width=40) Recheck Cond: (p_size = ANY ('{33,29,37,47,38,49,25,36}'::integer[])) Filter: ((p_brand <> 'Brand#55'::bpchar) AND ((p_type)::text !~~ 'LARGE BURNISHED%'::text)) -> Bitmap Index Scan on part_p_size_idx (cost=0.00..5700.31 rows=321340 width=0) Index Cond: (p_size = ANY ('{33,29,37,47,38,49,25,36}'::integer[])) (17 rows) COMMIT; COMMIT