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index not used

From: Enrico Weigelt <weigelt(at)metux(dot)de>
To: postgresql performance list <pgsql-performance(at)postgresql(dot)org>
Subject: index not used
Date: 2005-04-21 19:05:44
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
Hi folks,

I'm doing a simple lookup in a small table by an unique id, and I'm
wondering, why explains tells me seqscan is used instead the key.

The table looks like:

    id	bigint		primary key,
    a	varchar,
    b	varchar,
    c 	varchar
and I'm quering: select * from foo where id = 2;

I've got only 15 records in this table, but I wanna have it as 
fast as possible since its used (as a map between IDs and names) 
for larger queries.

 Enrico Weigelt    ==   metux IT service

  phone:     +49 36207 519931         www:
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Subject: Re: Index bloat problem?
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