BEGIN; BEGIN EXPLAIN (ANALYZE, BUFFERS) select sum(l_extendedprice * l_discount) as revenue from lineitem where l_shipdate >= date '1996-01-01' and l_shipdate < cast(date '1996-01-01' + interval '1 year' as date) and l_discount between 0.03 - 0.01 and 0.03 + 0.01 and l_quantity < 24; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Aggregate (cost=1469698.98..1469698.99 rows=1 width=8) (actual time=30974.574..30974.575 rows=1 loops=1) Buffers: shared hit=129214 read=903049 written=5 -> Bitmap Heap Scan on lineitem (cost=191008.89..1465851.72 rows=769452 width=8) (actual time=8199.627..30646.787 rows=764350 loops=1) Recheck Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1997-01-01'::date)) Filter: ((l_discount >= 0.02::double precision) AND (l_discount <= 0.04::double precision) AND (l_quantity < 24::double precision)) Rows Removed by Filter: 8367895 Buffers: shared hit=129214 read=903049 written=5 -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx (cost=0.00..190816.53 rows=9118970 width=0) (actual time=7499.964..7499.964 rows=9159315 loops=1) Index Cond: ((l_shipdate >= '1996-01-01'::date) AND (l_shipdate < '1997-01-01'::date)) Buffers: shared hit=1 read=24932 written=5 Total runtime: 30983.993 ms (11 rows) COMMIT; COMMIT