BEGIN; BEGIN EXPLAIN (ANALYZE, BUFFERS) select sum(l_extendedprice * l_discount) as revenue from lineitem where l_shipdate >= date '1995-01-01' and l_shipdate < cast(date '1995-01-01' + 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=1464930.24..1464930.25 rows=1 width=8) (actual time=32992.161..32992.161 rows=1 loops=1) Buffers: shared hit=589262 read=439810 written=22499 -> Bitmap Heap Scan on lineitem (cost=190421.11..1461124.04 rows=761239 width=8) (actual time=7276.499..32666.003 rows=762258 loops=1) Recheck Cond: ((l_shipdate >= '1995-01-01'::date) AND (l_shipdate < '1996-01-01'::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: 8344444 Buffers: shared hit=589262 read=439810 written=22499 -> Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx (cost=0.00..190230.80 rows=9076797 width=0) (actual time=6656.427..6656.427 rows=9115795 loops=1) Index Cond: ((l_shipdate >= '1995-01-01'::date) AND (l_shipdate < '1996-01-01'::date)) Buffers: shared hit=6134 read=18753 Total runtime: 32998.571 ms (11 rows) COMMIT; COMMIT