Re: cross table indexes or something?
От | Hannu Krosing |
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Тема | Re: cross table indexes or something? |
Дата | |
Msg-id | 1069885949.3176.57.camel@fuji.krosing.net обсуждение исходный текст |
Ответ на | cross table indexes or something? (Jeremiah Jahn <jeremiah@cs.earlham.edu>) |
Ответы |
Re: cross table indexes or something?
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Список | pgsql-performance |
Jeremiah Jahn kirjutas K, 26.11.2003 kell 22:14: > I was wondering if there is something I can do that would act similar to > a index over more than one table. > > I have about 3 million people in my DB at the moment, they all have > roles, and many of them have more than one name. > > for example, a Judge will only have one name, but a Litigant could have > multiple aliases. Things go far to slow when I do a query on a judge > named smith. If you dont need all the judges named smith you could try to use LIMIT. Have you run ANALYZE ? Why does DB think that there is only one judge with name like SMITH% ? ------------- Hannu P.S. Always send EXPLAIN ANALYZE output if asking for advice on [PERFORM] ------------- Hannu
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