From: David Teran <david.teran@cluster9.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PgSQL Performance ML <pgsql-performance@postgresql.org>
Subject: Re: AND OR combination: index not being used
Date: Fri, 13 May 2005 00:38:22 +0200
Message-ID: <5989cd23aa4942c871aba9cdcd7c4262@cluster9.com> (raw)
In-Reply-To: <254.1115907326@sss.pgh.pa.us>
References: <2aeb891e99fa6313e9e3a20d48c099aa@cluster9.com>
<254.1115907326@sss.pgh.pa.us>
On 12.05.2005, at 16:15, Tom Lane wrote:
> David Teran <david.teran@cluster9.com> writes:
>> Any hint how
>> to force postgres to use the index even with more OR parts?
>
> More up-to-date statistics would evidently help; the thing is
> estimating
> hundreds of rows returned and actually finding none.
>
I always do a 'vacuum analyze' if something does not work as expected.
But this did not help. Any other tip?
regards, David
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To: pgsql-performance@postgresql.org
Cc: david.teran@cluster9.com, tgl@sss.pgh.pa.us
Subject: Re: AND OR combination: index not being used
In-Reply-To: <5989cd23aa4942c871aba9cdcd7c4262@cluster9.com>
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