Re: query slow problem
От | frank_lupo |
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Тема | Re: query slow problem |
Дата | |
Msg-id | H00QE1$I01haKcNFANMKp4encvwuqwK_F3tEjBV94VVCs8qkAVBW@email.it обсуждение исходный текст |
Ответ на | query slow problem ("frank_lupo" <frank_lupo@email.it>) |
Ответы |
Re: query slow problem
|
Список | pgsql-general |
> > On Mon, 29 Jul 2002, frank_lupo wrote: > > > select id,de2 from irtab where id in (select distinct(ruolofunz) from > > irelbtes_1 where entpian=118331)\g > > In optimizes poorly currently in postgres, so you're generally better > off converting to EXISTS or subselect in FROM. Something like > (untested): > > select id, de2 from irtabl where exists (select 1 from > irelbtes_1 where entpian=118331 and irtabl.id=ruolofunz) > > or > > select id, de2 from irtabl, (select distinct(ruolofunz) as r from > irelbtes_1 where entpian=118331) as i > where i.r=irtabl.id; > > > > > My problem is not resolved. Thank Bye !! Frank Lupo (Wolf) !! -- Prendi GRATIS l'email universale che... risparmia: http://www.email.it/f Sponsor: Paura delle Eurobanconote false? Clicca qui Clicca qui: http://adv2.email.it/cgi-bin/foclick.cgi?mid=374&d=29-7
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