BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	o_orderpriority,
	count(*) as order_count
from
	orders
where
	o_orderdate >= date '1993-04-01'
	and o_orderdate < cast(date '1993-04-01' + 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=1487865.94..1487865.94 rows=1 width=16) (actual time=12070.990..12070.991 rows=5 loops=1)
   Sort Key: orders.o_orderpriority
   Sort Method: quicksort  Memory: 25kB
   Buffers: shared hit=2737492 read=365742 written=9
   ->  HashAggregate  (cost=1487865.92..1487865.93 rows=1 width=16) (actual time=12070.944..12070.944 rows=5 loops=1)
         Group Key: orders.o_orderpriority
         Buffers: shared hit=2737487 read=365742 written=9
         ->  Nested Loop Semi Join  (cost=5964.62..1487090.18 rows=155148 width=16) (actual time=27.772..11786.737 rows=521334 loops=1)
               Buffers: shared hit=2737487 read=365742 written=9
               ->  Bitmap Heap Scan on orders  (cost=5964.06..269420.41 rows=577957 width=20) (actual time=27.731..4673.506 rows=568242 loops=1)
                     Recheck Cond: ((o_orderdate >= '1993-04-01'::date) AND (o_orderdate < '1993-07-01'::date))
                     Rows Removed by Index Recheck: 14446758
                     Heap Blocks: lossy=254787
                     Buffers: shared hit=253436 read=1362
                     ->  Bitmap Index Scan on orders_o_orderkey_o_orderdate_brin_idx  (cost=0.00..5819.57 rows=577957 width=0) (actual time=27.554..27.554 rows=2548480 loops=1)
                           Index Cond: ((o_orderdate >= '1993-04-01'::date) AND (o_orderdate < '1993-07-01'::date))
                           Buffers: shared hit=2 read=9
               ->  Index Scan using pk_lineitem on lineitem  (cost=0.56..7.07 rows=5 width=4) (actual time=0.012..0.012 rows=1 loops=568242)
                     Index Cond: (l_orderkey = orders.o_orderkey)
                     Filter: (l_commitdate < l_receiptdate)
                     Rows Removed by Filter: 1
                     Buffers: shared hit=2484051 read=364380 written=9
 Planning time: 2.482 ms
 Execution time: 12071.143 ms
(24 rows)

COMMIT;
COMMIT