index problem

Sorry for the noise, but:

tomka=> EXPLAIN SELECT ertek from meres where id=62;
                          QUERY PLAN
---------------------------------------------------------------
 Seq Scan on meres  (cost=0.00..462872.90 rows=220854 width=8)
   Filter: (id = 62)
(2 rows)

In the table is approx 23 million lines.

tomka=> \d meres
                  Table "public.meres"
  Column  |          Type          |     Modifiers
----------+------------------------+--------------------
 ido      | date                   | not null
 hiheto   | smallint               | not null default 1
 ertek    | double precision       | not null
 dbido    | date                   | not null
 id       | smallint               | not null
 ertekstr | character varying(200) | not null
Indexes:
    "ix1" btree (id)
    "ix2" btree (ido, id)
    "ix3" btree (id, ido)

I am after a create/copy/vacuum full analyze.
psql (PostgreSQL) 7.4.6

So, what docs i need to read? :) I want to use the indexes, really.



--
Tomka Gergely
Tudom, anyu. Sapka, sál, doksi.