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Re: RestrictionClauseSelectivity error on select

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: danny(at)lennon(dot)postino(dot)com
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: RestrictionClauseSelectivity error on select
Date: 2000-08-13 04:38:11
Message-ID: 7236.966141491@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-novice
danny(at)lennon(dot)postino(dot)com writes:
> I am trying to do a select * from table where column like '%pattern%' ;
> from a varchar field, and am getting the error:
> RestrictionClauseSelectivity : bad value - 1.98625  error .

Short term solution: VACUUM ANALYZE to fix bogus statistical data.

Long term solution: update to a newer pgsql release.  The bug that
causes creation of the bogus stats has been fixed since 6.5 or so,
IIRC.

			regards, tom lane

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