Re: Auto-uppercase inserted column

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Jurgen Defurne <defurnj(at)glo(dot)be>
Cc: postgreSQL general mailing list <pgsql-general(at)postgreSQL(dot)org>
Subject: Re: Auto-uppercase inserted column
Date: 2000-05-20 11:26:53
Message-ID: 200005201126.HAA15302@candle.pha.pa.us
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> Bruce Momjian wrote:
>
> > Is there a way to automatically uppercase a column upon insert or
> > update?
> >
> > I don't think rules can do that because of the problem of recursion.
> > The only way I think it can be done is using triggers. Is that correct?
> >
>
> Since triggers are available in postgreSQL, that should be the way, yes.
> You have to have access to the NEW values in your trigger, and then you
> should say something like
> NEW.field := upper(NEW.field) ;
>
> In older database systems this would be done in the entry system, but
> then you have a coupling between your application and the database.

Thanks. I was just seeking confirmation for my book. I expected
triggers where the only way.

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