Re: Explain's estimation differs from real count enormously

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Sergey Konoplev" <gray(dot)ru(at)gmail(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org >> PG-General Mailing List" <pgsql-general(at)postgresql(dot)org>
Subject: Re: Explain's estimation differs from real count enormously
Date: 2008-10-23 13:25:05
Message-ID: 13300.1224768305@sss.pgh.pa.us
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"Sergey Konoplev" <gray(dot)ru(at)gmail(dot)com> writes:
> Could somebody explain me why it happens and how to make it work right?

Implement a selectivity estimator for <@ that isn't just a stub :-(

regards, tom lane

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