From: Jeff Davis <pgsql@j-davis.com>
To: Adrian Demaestri <ademaestri@yahoo.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Seqscan
Date: Mon, 22 Oct 2007 19:45:11 -0700
Message-ID: <1193107511.26301.59.camel@jdavis> (raw)
In-Reply-To: <853733.8751.qm@web50901.mail.re2.yahoo.com>
References: <853733.8751.qm@web50901.mail.re2.yahoo.com>
On Mon, 2007-10-22 at 19:24 -0700, Adrian Demaestri wrote:
> Hi,
> I think planner should use other plans than seqscan to solve querys
> like select * from hugetable limit 1, especially when the talbe is
> very large. Is it solved in newer versions or is there some open
> issues about it?.
> thanks
> I'm working with postgres 8.0.1,
For the query in question, what would be faster than a seqscan? It
doesn't read the whole table, it only reads until it satisfies the limit
clause.
Regards,
Jeff Davis
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To: pgsql-performance@postgresql.org
Cc: pgsql@j-davis.com, ademaestri@yahoo.com
Subject: Re: Seqscan
In-Reply-To: <1193107511.26301.59.camel@jdavis>
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