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From: Joshua D. Drake <jd@commandprompt.com>
To: Adam PAPAI <wooh@wooh.hu>
Cc: pgsql-performance@postgresql.org
Subject: Re: SELECT * FROM table is too slow
Date: Sun, 16 Dec 2007 10:37:28 -0800
Message-ID: <47657068.5070200@commandprompt.com> (raw)
In-Reply-To: <47656FC5.8060102@wooh.hu>
References: <47656FC5.8060102@wooh.hu>

Adam PAPAI wrote:
> Hi pgsql-performance,
> 
> I've a problem with the select * on a small table.
> 
> See below:
> 
>
> x7=# SELECT count(idn) from megjelenesek;
>  count
> -------
>    162
> (1 row)
> 
> Why does it take cca 18-20 sec to get the results?
> Too many indexes?

You likely have a huge amount of dead rows. Try dumping and restoring 
the table and remember to run vacuum (or autovacuum) often.

Sincerely,


Joshua D. Drake





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