BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	o_orderpriority,
	count(*) as order_count
from
	orders
where
	o_orderdate >= date '1996-07-01'
	and o_orderdate < cast(date '1996-07-01' + interval '3 month' as date)
	and exists (
		select
			*
		from
			lineitem
		where
			l_orderkey = o_orderkey
			and l_commitdate < l_receiptdate
	)
group by
	o_orderpriority
order by
	o_orderpriority;
                                                                                   QUERY PLAN                                                                                    
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=1489844.09..1489844.10 rows=1 width=16) (actual time=13553.393..13553.393 rows=5 loops=1)
   Sort Key: orders.o_orderpriority
   Sort Method: quicksort  Memory: 25kB
   Buffers: shared hit=2902964 read=231168 dirtied=253 written=3913
   ->  HashAggregate  (cost=1489844.07..1489844.08 rows=1 width=16) (actual time=13553.349..13553.349 rows=5 loops=1)
         Group Key: orders.o_orderpriority
         Buffers: shared hit=2902959 read=231168 dirtied=253 written=3913
         ->  Nested Loop Semi Join  (cost=5972.37..1489068.86 rows=155042 width=16) (actual time=27.738..13261.499 rows=526776 loops=1)
               Buffers: shared hit=2902959 read=231168 dirtied=253 written=3913
               ->  Bitmap Heap Scan on orders  (cost=5971.80..269947.48 rows=578712 width=20) (actual time=27.711..6231.398 rows=574304 loops=1)
                     Recheck Cond: ((o_orderdate >= '1996-07-01'::date) AND (o_orderdate < '1996-10-01'::date))
                     Rows Removed by Index Recheck: 14425696
                     Heap Blocks: lossy=255295
                     Buffers: shared hit=211281 read=44025 dirtied=253 written=1199
                     ->  Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx  (cost=0.00..5827.12 rows=578712 width=0) (actual time=27.546..27.546 rows=2553600 loops=1)
                           Index Cond: ((o_orderdate >= '1996-07-01'::date) AND (o_orderdate < '1996-10-01'::date))
                           Buffers: shared hit=5 read=6
               ->  Index Scan using pk_lineitem on lineitem  (cost=0.56..7.08 rows=5 width=4) (actual time=0.011..0.011 rows=1 loops=574304)
                     Index Cond: (l_orderkey = orders.o_orderkey)
                     Filter: (l_commitdate < l_receiptdate)
                     Rows Removed by Filter: 1
                     Buffers: shared hit=2691678 read=187143 written=2714
 Planning time: 2.162 ms
 Execution time: 13553.531 ms
(24 rows)

COMMIT;
COMMIT