Re: Strange Index behavior

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Együd Csaba (Freemail) <csegyud(at)freemail(dot)hu>
Cc: 'Együd Csaba' <csegyud(at)vnet(dot)hu>, pgsql-general(at)postgresql(dot)org
Subject: Re: Strange Index behavior
Date: 2004-12-22 17:34:15
Message-ID: 5322.1103736855@sss.pgh.pa.us
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=?iso-8859-2?Q?Egy=FCd_Csaba_=28Freemail=29?= <csegyud(at)freemail(dot)hu> writes:
> The point is that there are cases where a primary key index is not used -
> even if the condition is formaly good.

You haven't actually shown us such a case. In the case you gave,
I think the planner probably made the right choice not to use the index.

regards, tom lane

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