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#42'
	and p_type not like 'ECONOMY PLATED%'
	and p_size in (5, 14, 12, 6, 9, 44, 24, 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=456333.30..456402.99 rows=27876 width=40) (actual time=55145.414..55147.486 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=108046 read=104398
   ->  GroupAggregate  (cost=446600.18..454275.11 rows=27876 width=40) (actual time=53743.582..54702.058 rows=27839 loops=1)
         Buffers: shared hit=108030 read=104398
         ->  Sort  (cost=446600.18..448079.41 rows=591694 width=40) (actual time=53743.462..54026.358 rows=1187961 loops=1)
               Sort Key: part.p_brand, part.p_type, part.p_size
               Sort Method: quicksort  Memory: 141962kB
               Buffers: shared hit=108030 read=104398
               ->  Hash Join  (cost=57998.08..389873.02 rows=591694 width=40) (actual time=1410.070..20866.405 rows=1187961 loops=1)
                     Hash Cond: (partsupp.ps_partkey = part.p_partkey)
                     Buffers: shared hit=108030 read=104398
                     ->  Seq Scan on partsupp  (cost=8.48..270966.48 rows=4000000 width=8) (actual time=3.503..11358.929 rows=7995520 loops=1)
                           Filter: (NOT (hashed SubPlan 1))
                           Rows Removed by Filter: 4480
                           Buffers: shared hit=67176 read=103839
                           SubPlan 1
                             ->  Index Scan using supplier_s_suppkey_idx_like on supplier  (cost=0.00..8.45 rows=10 width=4) (actual time=0.066..3.415 rows=56 loops=1)
                                   Buffers: shared hit=55 read=2
                     ->  Hash  (cost=54272.86..54272.86 rows=297339 width=40) (actual time=1406.207..1406.207 rows=297161 loops=1)
                           Buckets: 32768  Batches: 1  Memory Usage: 21511kB
                           Buffers: shared hit=40854 read=559
                           ->  Bitmap Heap Scan on part  (cost=5739.86..54272.86 rows=297339 width=40) (actual time=207.634..1204.708 rows=297161 loops=1)
                                 Recheck Cond: (p_size = ANY ('{5,14,12,6,9,44,24,46}'::integer[]))
                                 Filter: ((p_brand <> 'Brand#42'::bpchar) AND ((p_type)::text !~~ 'ECONOMY PLATED%'::text))
                                 Rows Removed by Filter: 22958
                                 Buffers: shared hit=40854 read=559
                                 ->  Bitmap Index Scan on part_p_size_idx  (cost=0.00..5665.53 rows=320440 width=0) (actual time=192.291..192.291 rows=320119 loops=1)
                                       Index Cond: (p_size = ANY ('{5,14,12,6,9,44,24,46}'::integer[]))
                                       Buffers: shared hit=341 read=559
 Total runtime: 55171.873 ms
(32 rows)

COMMIT;
COMMIT