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From: sad <sad@bankir.ru>
From: (by way of sad <sad@bankir.ru>
To: pgsql-sql@postgresql.org
Subject: Re: feature request ?
Date: Thu, 24 Jun 2004 09:01:21 +0400
Message-ID: <200406240901.21267.sad@bankir.ru> (raw)

On Wednesday 23 June 2004 21:12, you wrote:
> Sad,
>
> > since BOOL expression has three possible values: TRUE,FALSE,NULL
> > plpgsql IF control structure should have three alternate blocks:
> > THEN,ELSE,NULL
> >
> > shouldn't it ?
>
> No, why?
>
> How would you construct a tri-valued IF/THEN?     Doesn't seem too likely
> to me, as well as being different from every other programming language in
> existance ...

Three valued BOOLEAN is already different "from every other programming
language in existance"





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