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Re: Indexes not used

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "D(dot) Duccini" <duccini(at)backpack(dot)com>
Cc: Pgsql-novice <pgsql-novice(at)postgresql(dot)org>
Subject: Re: Indexes not used
Date: 2001-03-15 20:27:38
Message-ID: 15082.984688058@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-novice
"D. Duccini" <duccini(at)backpack(dot)com> writes:
> # explain select * from radusage where account = 'someuser';

> Seq Scan on radusage  (cost=0.00..13839.67 rows=5757 width=50)

Have you done a VACUUM ANALYZE?

The rows count looks like it might be a default estimate (but I'm just
counting on my fingers to guess that you have about a million rows in
the table).  If the rows count *is* accurate then a seq scan is
probably the right thing to be using...

			regards, tom lane

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