Re: Index over only uncommon values in table

From: John R Pierce <pierce(at)hogranch(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Index over only uncommon values in table
Date: 2013-06-18 19:23:26
Message-ID: 51C0B3AE.4020402@hogranch.com
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On 6/18/2013 12:17 PM, Steven Schlansker wrote:
> 1) The common value is not known at schema definition time, and may change (very slowly) over time.

how could a value thats constant in 95% of the rows change, unless you
added 20 times more rows with a new value (and for a big portion of the
time, no value would meet your 95% criteria).

--
john r pierce 37N 122W
somewhere on the middle of the left coast

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