From: Lance Peterson <heart8reaker@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: How to cast VARCHAR to BYTEA and vice-versa?
Date: Mon, 14 Mar 2005 10:31:20 -0700
Message-ID: <ec98d12d0503140931386fcdf4@mail.gmail.com> (raw)
In-Reply-To: <4235683A.6D2CA65A@rodos.fzk.de>
References: <B27C8914860EE24E865D189A3735EA5310091D@lasexch03.is.ad.igt.com>
<4235683A.6D2CA65A@rodos.fzk.de>
Christoph, is that recent functionality? I'm running 7.4 and I get:
ERROR: cannot cast type text to bytea
I get similar errors when trying to go the other direction.
On Mon, 14 Mar 2005 11:32:26 +0100, Christoph Haller <ch@rodos.fzk.de> wrote:
> "Moran.Michael" wrote:
> >
> > Hello all,
> >
> > I have a table with a VARCHAR column that I need to convert to a BYTEA.
> >
> > How do I cast VARCHAR to BYTEA?
> >
> > The following doesn't seem to work as it yields the 'cannot cast varchar to
> > bytea' error message:
> >
> > varchar_data::bytea
> >
> > On the same topic, how do I do the reverse, that is, how to I cast from
> > BYTEA back to VARCHAR?
> >
> > Thanks,
> > -Michael Moran
> >
> >
> As far as I remember
> varchar_data::TEXT::BYTEA
> works. Vice versa dto.
> Be aware BYTEA data may contain character codes
> unconvertable to VARCHAR, especially '\0'.
>
> Regards, Christoph
>
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To: pgsql-sql@postgresql.org
Cc: heart8reaker@gmail.com
Subject: Re: How to cast VARCHAR to BYTEA and vice-versa?
In-Reply-To: <ec98d12d0503140931386fcdf4@mail.gmail.com>
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