BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	sum(l_extendedprice * l_discount) as revenue
from
	lineitem
where
	l_shipdate >= date '1993-01-01'
	and l_shipdate < cast(date '1993-01-01' + interval '1 year' as date)
	and l_discount between 0.07 - 0.01 and 0.07 + 0.01
	and l_quantity < 25;
                                                                               QUERY PLAN                                                                               
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=1467310.94..1467310.95 rows=1 width=8) (actual time=19050.563..19050.564 rows=1 loops=1)
   Buffers: shared hit=755312 read=275874 written=1989
   ->  Bitmap Heap Scan on lineitem  (cost=190291.86..1463328.22 rows=796543 width=8) (actual time=6555.410..18855.530 rows=796384 loops=1)
         Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date))
         Filter: ((l_discount >= 0.06::double precision) AND (l_discount <= 0.08::double precision) AND (l_quantity < 25::double precision))
         Rows Removed by Filter: 8314157
         Heap Blocks: exact=1006292
         Buffers: shared hit=755312 read=275874 written=1989
         ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..190092.73 rows=9080416 width=0) (actual time=5819.476..5819.476 rows=9142098 loops=1)
               Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date))
               Buffers: shared hit=2819 read=22075 written=1086
 Planning time: 1.741 ms
 Execution time: 19063.986 ms
(13 rows)

COMMIT;
COMMIT