Re: Plan stability versus near-exact ties in cost estimates

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Plan stability versus near-exact ties in cost estimates
Date: 2012-04-20 15:03:46
Message-ID: 7098.1334934226@sss.pgh.pa.us
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"Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at> writes:
> What if you remove the exact cost comparison, but leave the part where
> old dominates new based on rows?

Um, that is what the proposed patch does.

regards, tom lane

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