BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	o_orderpriority,
	count(*) as order_count
from
	orders
where
	o_orderdate >= date '1995-11-01'
	and o_orderdate < cast(date '1995-11-01' + 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=1481413.22..1481413.23 rows=1 width=16) (actual time=11676.884..11676.885 rows=5 loops=1)
   Sort Key: orders.o_orderpriority
   Sort Method: quicksort  Memory: 25kB
   Buffers: shared hit=2784954 read=342511
   ->  HashAggregate  (cost=1481413.20..1481413.21 rows=1 width=16) (actual time=11676.835..11676.836 rows=5 loops=1)
         Group Key: orders.o_orderpriority
         Buffers: shared hit=2784949 read=342511
         ->  Nested Loop Semi Join  (cost=5917.38..1480641.35 rows=154371 width=16) (actual time=27.667..11396.738 rows=525709 loops=1)
               Buffers: shared hit=2784949 read=342511
               ->  Bitmap Heap Scan on orders  (cost=5916.81..268545.02 rows=573347 width=20) (actual time=27.648..4608.742 rows=573220 loops=1)
                     Recheck Cond: ((o_orderdate >= '1995-11-01'::date) AND (o_orderdate < '1996-02-01'::date))
                     Rows Removed by Index Recheck: 14441780
                     Heap Blocks: lossy=254028
                     Buffers: shared hit=226109 read=27930
                     ->  Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx  (cost=0.00..5773.47 rows=573347 width=0) (actual time=27.482..27.482 rows=2540800 loops=1)
                           Index Cond: ((o_orderdate >= '1995-11-01'::date) AND (o_orderdate < '1996-02-01'::date))
                           Buffers: shared hit=3 read=8
               ->  Index Scan using pk_lineitem on lineitem  (cost=0.56..7.09 rows=5 width=4) (actual time=0.011..0.011 rows=1 loops=573220)
                     Index Cond: (l_orderkey = orders.o_orderkey)
                     Filter: (l_commitdate < l_receiptdate)
                     Rows Removed by Filter: 1
                     Buffers: shared hit=2558840 read=314581
 Planning time: 2.050 ms
 Execution time: 11677.010 ms
(24 rows)

COMMIT;
COMMIT