BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
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#11'
	and p_type not like 'PROMO POLISHED%'
	and p_size in (34, 25, 37, 41, 42, 4, 7, 46)
	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=417231.04..417301.11 rows=28026 width=40) (actual time=12303.119..12307.706 rows=27839 loops=1)
   Sort Key: (count(DISTINCT partsupp.ps_suppkey)), part.p_brand, part.p_type, part.p_size
   Sort Method: quicksort  Memory: 2967kB
   Buffers: shared hit=31449 read=180996 written=8236
   ->  GroupAggregate  (cost=407407.06..415160.70 rows=28026 width=40) (actual time=11309.376..12246.199 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=31435 read=180996 written=8236
         ->  Sort  (cost=407407.06..408901.74 rows=597870 width=40) (actual time=11309.276..11611.953 rows=1190443 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 142156kB
               Buffers: shared hit=31435 read=180996 written=8236
               ->  Hash Join  (cost=58106.31..350043.01 rows=597870 width=40) (actual time=912.221..7818.349 rows=1190443 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=31435 read=180996 written=8236
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.458..4772.887 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=15117 read=155897 written=7042
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.048..0.412 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=54353.40..54353.40 rows=298935 width=40) (actual time=907.914..907.914 rows=297770 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25652kB
                           Buffers: shared hit=16318 read=25099 written=1194
                           ->  Bitmap Heap Scan on part  (cost=5781.22..54353.40 rows=298935 width=40) (actual time=79.906..762.593 rows=297770 loops=1)
                                 Recheck Cond: (p_size = ANY ('{34,25,37,41,42,4,7,46}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#11'::bpchar) AND ((p_type)::text !~~ 'PROMO POLISHED%'::text))
                                 Rows Removed by Filter: 22784
                                 Heap Blocks: exact=40517
                                 Buffers: shared hit=16318 read=25099 written=1194
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5706.49 rows=322007 width=0) (actual time=70.120..70.120 rows=320554 loops=1)
                                       Index Cond: (p_size = ANY ('{34,25,37,41,42,4,7,46}'::integer[]))
                                       Buffers: shared hit=9 read=891 written=40
 Planning time: 4.487 ms
 Execution time: 12335.536 ms
(35 rows)

COMMIT;
COMMIT