> Seq Scan on article (cost=0.00..1.61 rows=1 width=8)
:-)
Replying to myself..
Notice the "cost" reported by the database. "0.00..1.61". That is fairly
low. Just to give you an example. I have a table with 259 rows. and I got:
-------
test=# explain select * from phones;
NOTICE: QUERY PLAN:
Seq Scan on phones (cost=0.00..20.00 rows=1000 width=36)
EXPLAIN
test=# vacuum analyze
test-# ;
VACUUM
test=# explain select * from phones;
NOTICE: QUERY PLAN:
Seq Scan on phones (cost=0.00..5.59 rows=259 width=36)
--------
0 to 5.59 for just 259 rows, yet yours is only 1.61. Possible the entire
table was in memory so there was no need to go to index.
