Re: PostgreSQL doesn't use indexes even is enable_seqscan = off

Поиск
Список
Период
Сортировка
Искать
От
nconway@klamath.dyndns.org (Neil Conway)
Тема
Re: PostgreSQL doesn't use indexes even is enable_seqscan = off
Дата
Msg-id
20020708182112.GB3358@klamath.dyndns.org
Ответ на
Список
Дерево обсуждения
PostgreSQL doesn't use indexes even is enable_seqscan = off Hans-Juergen Schoenig <hs@cybertec.at>
Re: PostgreSQL doesn't use indexes even is enable_seqscan Stephan Szabo <sszabo@megazone23.bigpanda.com>
Re: PostgreSQL doesn't use indexes even is enable_seqscan Ricardo Junior <suga@netbsd.com.br>
Re: PostgreSQL doesn't use indexes even is enable_seqscan = off Richard Huxton <dev@archonet.com>
Re: PostgreSQL doesn't use indexes even is enable_seqscan = off nconway@klamath.dyndns.org (Neil Conway)
Re: PostgreSQL doesn't use indexes even is enable_seqscan = off Manfred Koizar <mkoi-pg@aon.at>
Re: PostgreSQL doesn't use indexes even is enable_seqscan Darren Ferguson <darren@crystalballinc.com>
On Sun, Jul 07, 2002 at 10:48:51AM +0200, Hans-Juergen Schoenig wrote:
> cluster=# \d one
>          Table "one"
>  Column |  Type   | Modifiers
> --------+---------+-----------
>  id     | bigint  |
>  even   | boolean |
>  xmod   | integer |
> Indexes: idx_one_xmod
> Unique keys: idx_one_id

> cluster=# EXPLAIN SELECT * FROM one WHERE id=300000;
> NOTICE:  QUERY PLAN:
> 
> Seq Scan on one  (cost=100000000.00..109434714.00 rows=1 width=13)

Use single quotes around the int8 literal -- i.e.

SELECT * FROM one WHERE id = '300000';

This is an FAQ.

Cheers,

Neil

-- 
Neil Conway 
PGP Key ID: DB3C29FC


В списке pgsql-general по дате отправления
От: Christoph Dalitz
Дата:
От: João Paulo Batistella
Дата:
Сообщение: Select in update
FAQ