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 0.05 - 0.01 and 0.05 + 0.01 and l_quantity < 24; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Aggregate (cost=1471423.14..1471423.15 rows=1 width=8) (actual time=18328.466..18328.466 rows=1 loops=1) Buffers: shared hit=880208 read=151855 dirtied=571 written=2 -> Bitmap Heap Scan on lineitem (cost=191849.57..1467596.19 rows=765389 width=8) (actual time=8010.851..18144.595 rows=763103 loops=1) Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date)) Filter: ((l_discount >= 0.04::double precision) AND (l_discount <= 0.06::double precision) AND (l_quantity < 24::double precision)) Rows Removed by Filter: 8356441 Buffers: shared hit=880208 read=151855 dirtied=571 written=2 -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx (cost=0.00..191658.22 rows=9159139 width=0) (actual time=7411.037..7411.037 rows=9146201 loops=1) Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date)) Buffers: shared hit=2118 read=22777 Total runtime: 18334.175 ms (11 rows) COMMIT; COMMIT