vacuum fastpath;
set enable_seqscan to false;
set enable_bitmapscan to false;
-explain select sum(a) from fastpath where a = 6456;
- QUERY PLAN
-------------------------------------------------------------------------------------
- Aggregate (cost=4.31..4.32 rows=1 width=8)
- -> Index Only Scan using fpindex1 on fastpath (cost=0.29..4.30 rows=1 width=4)
- Index Cond: (a = 6456)
-(3 rows)
-
-explain select sum(a) from fastpath where a >= 5000 and a < 5700;
- QUERY PLAN
--------------------------------------------------------------------------------------
- Aggregate (cost=5.41..5.42 rows=1 width=8)
- -> Index Only Scan using fpindex1 on fastpath (cost=0.29..5.29 rows=50 width=4)
- Index Cond: ((a >= 5000) AND (a < 5700))
-(3 rows)
-
select sum(a) from fastpath where a = 6456;
sum
------
set enable_seqscan to false;
set enable_bitmapscan to false;
-explain select sum(a) from fastpath where a = 6456;
-explain select sum(a) from fastpath where a >= 5000 and a < 5700;
select sum(a) from fastpath where a = 6456;
select sum(a) from fastpath where a >= 5000 and a < 5700;