BEGIN; BEGIN EXPLAIN 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 0.02 - 0.01 and 0.02 + 0.01 and l_quantity < 25; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------- Aggregate (cost=1467433.89..1467433.90 rows=1 width=8) -> Bitmap Heap Scan on lineitem (cost=191535.09..1463431.52 rows=800474 width=8) Recheck Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date)) Filter: ((l_discount >= 0.01::double precision) AND (l_discount <= 0.03::double precision) AND (l_quantity < 25::double precision)) -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx (cost=0.00..191334.98 rows=9129841 width=0) Index Cond: ((l_shipdate >= '1993-01-01'::date) AND (l_shipdate < '1994-01-01'::date)) Planning time: 4.290 ms (7 rows) COMMIT; COMMIT