From: Tomas Vondra <tv@fuzzy.cz>
To: pgsql-performance@postgresql.org
Subject: Re: how explain works to Mr Nathan Boley
Date: Wed, 13 Apr 2011 22:19:10 +0200
Message-ID: <4DA6053E.3090200@fuzzy.cz> (raw)
In-Reply-To: <52482.84679.qm@web38603.mail.mud.yahoo.com>
References: <64088.55807.qm@web38604.mail.mud.yahoo.com>
<BANLkTikjvRxdZTPjNEPW_uNv=Y55r+tPDg@mail.gmail.com>
<52482.84679.qm@web38603.mail.mud.yahoo.com>
Dne 12.4.2011 01:22, Radhya sahal napsal(a):
> Thanks Mr Nathan Boley ,
> i want these equations to solve thsese equtions of parameters and total
> time in order to get each paramter formula
> i need these formula in my experiments is very important to know the
> rate for each parameter in total cost for plan.
> Best
> Radhya..
I don't think those equations are fully documented outside the source
code. If you really need the exact formulas, you'll have to dig into the
source codes and search there.
regards
Tomas
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To: pgsql-performance@postgresql.org
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Subject: Re: how explain works to Mr Nathan Boley
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