Re: why does this select hang postgres???

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От Bruce Momjian
Тема Re: why does this select hang postgres???
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Msg-id 200108101842.f7AIgx625300@candle.pha.pa.us
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Ответ на Re: why does this select hang postgres???  (Jeremy Hansen <jeremy@xxedgexx.com>)
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> On Fri, 10 Aug 2001, Bruce Momjian wrote:
>
> > >
> > > select * from env_info,summary,plat_info;
> > >
> > > Is my statement broken?  Is this not legal?  Postgres just sits there....
> > >
> > > My goal is to select everything from multiple tables with one sql
> > > statement.
> >
> > You didn't join the tables.  This will join each row to every other row.
> > This will take a long time.
>
> Any tips on this syntax?  I'll go look at joins right now I guess :-)

See chapter on joins:

    http://www.postgresql.org/docs/awbook.html

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