Re: why sequential scan is used on indexed column ???

From: Andreas Kretschmer <akretschmer(at)spamfence(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: why sequential scan is used on indexed column ???
Date: 2008-06-14 14:59:44
Message-ID: 20080614145944.GA9923@tux
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Julius Tuskenis <julius(dot)tuskenis(at)gmail(dot)com> schrieb:

> Hello.
>
> I have a question concerning performance. One of my queries take a long
> to execute. I tried to do "explain analyse" and I see that the
> sequential scan is being used, although I have indexes set on columns
> that are used in joins. The question is - WHY, and how to change that
> behavior???

Try to create an index on apsilankymai.sas_id

Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknown)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°

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