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Re: Alpha4 Available Now

From: Дмитрий Фефелов <fozzy(at)ac-sw(dot)com>
To: Michael Glaesemann <grzm(at)seespotcode(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org, Josh Berkus <josh(at)agliodbs(dot)com>
Subject: Re: Alpha4 Available Now
Date: 2010-02-27 03:59:01
Message-ID: 201002270959.01788.fozzy@ac-sw.com (view raw or flat)
Thread:
Lists: pgsql-hackers
> 
> On Feb 26, 2010, at 0:55 , Дмитрий Фефелов wrote:
> 
> > http://developer.postgresql.org/pgdocs/postgres/release-9-0.html
> >
> > Performance section:
> >
> >> Simplify the forms foo <> true and foo <> false to foo = false and
> >> foo = true during query optimization.
> >
> > Will it work correct;ly when foo is NULL?
> 
> It shouldn't have any effect: NULL <> anything and NULL = anything is  
> NULL

I already got it, dumb question ;))


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