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 0.03 - 0.01 and 0.03 + 0.01 and l_quantity < 24; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Aggregate (cost=1487132.14..1487132.15 rows=1 width=8) (actual time=26118.076..26118.076 rows=1 loops=1) Buffers: shared hit=282388 read=760719 dirtied=464 written=35058 -> Bitmap Heap Scan on lineitem (cost=193165.51..1483219.35 rows=782559 width=8) (actual time=8215.640..25837.583 rows=763286 loops=1) Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::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: 8357266 Buffers: shared hit=282388 read=760719 dirtied=464 written=35058 -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx (cost=0.00..192969.87 rows=9274304 width=0) (actual time=7629.913..7629.913 rows=9246169 loops=1) Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date)) Buffers: shared read=24895 Total runtime: 26124.488 ms (11 rows) COMMIT; COMMIT