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From: Tom Lane <[email protected]>
To: Joshua D. Drake <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: George Pavlov <[email protected]>
Cc: [email protected]
Subject: Re: index vs. seq scan choice?
Date: Thu, 24 May 2007 23:26:08 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <8C5B026B51B6854CBE88121DBF097A86C3A30D@ehost010-33.exch010.intermedia.net>
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"Joshua D. Drake" <[email protected]> writes:
> Tom Lane wrote:
>> I'm not sure I want to vote for another 10x increase by
>> default, though.

> Outside of longer analyze times, and slightly more space taken up by the 
> statistics, what is the downside?

Longer plan times --- several of the selfuncs.c routines grovel over all
the entries in the pg_statistic row.  AFAIK no one's measured the real
impact of that, but it could easily be counterproductive for simple queries.

			regards, tom lane

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