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From: Josh Berkus <josh@agliodbs.com>
To: sad <sad@bankir.ru>
To: pgsql-sql@postgresql.org
Subject: Re: perfomance question
Date: Thu, 18 Mar 2004 10:38:30 -0800
Message-ID: <200403181038.30116.josh@agliodbs.com> (raw)
In-Reply-To: <200403180941.45591.sad@bankir.ru>
References: <200403180941.45591.sad@bankir.ru>

Sad,

> what are perfomance difference bitween
> a)  update t1 set f1 = 'x', f2 = 'y';
> b)  update t1 set f1 = 'x', f2 = f2;
> c)  update t1 set f1 = 'x';
> ?

Not a lot.  Why don't you try it?

-- 
-Josh Berkus
 Aglio Database Solutions
 San Francisco




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