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#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) (actual time=11453.047..11456.116 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=22373 read=189186 written=429
   ->  GroupAggregate  (cost=402284.50..409851.83 rows=27620 width=40) (actual time=10622.925..11393.261 rows=27839 loops=1)
         Group Key: part.p_brand, part.p_type, part.p_size
         Buffers: shared hit=22359 read=189186 written=429
         ->  Sort  (cost=402284.50..403742.72 rows=583291 width=40) (actual time=10622.861..10787.345 rows=1184308 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141677kB
               Buffers: shared hit=22359 read=189186 written=429
               ->  Hash Join  (cost=54632.23..346423.14 rows=583291 width=40) (actual time=1318.986..7000.573 rows=1184308 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=22359 read=189186 written=429
                     ->  Seq Scan on partsupp  (cost=16.23..270974.23 rows=4000000 width=8) (actual time=0.571..4095.294 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=17510 read=153504 written=239
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.14..15.98 rows=100 width=4) (actual time=0.039..0.530 rows=56 loops=1)
                                   Buffers: shared hit=55 read=1
                     ->  Hash  (cost=50933.34..50933.34 rows=294613 width=40) (actual time=1316.031..1316.031 rows=296234 loops=1)
                           Buckets: 524288  Batches: 1  Memory Usage: 25526kB
                           Buffers: shared hit=4849 read=35682 written=190
                           ->  Bitmap Heap Scan on part  (cost=2468.51..50933.34 rows=294613 width=40) (actual time=34.885..1184.612 rows=296234 loops=1)
                                 Recheck Cond: (p_size = ANY ('{26,25,40,8,33,9,46,12}'::integer[]))
                                 Rows Removed by Index Recheck: 1680628
                                 Filter: ((p_brand <> 'Brand#35'::bpchar) AND ((p_type)::text !~~ 'MEDIUM BURNISHED%'::text))
                                 Rows Removed by Filter: 23138
                                 Heap Blocks: lossy=40522
                                 Buffers: shared hit=4849 read=35682 written=190
                                 ->  Bitmap Index Scan on part_p_size_brin_idx  (cost=0.00..2394.86 rows=317713 width=0) (actual time=34.819..34.819 rows=3246080 loops=1)
                                       Index Cond: (p_size = ANY ('{26,25,40,8,33,9,46,12}'::integer[]))
                                       Buffers: shared hit=7 read=2
 Planning time: 3.522 ms
 Execution time: 11464.692 ms
(36 rows)

COMMIT;
COMMIT