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From: Christoph Haller <ch@rodos.fzk.de>
To: Moran.Michael <Michael.Moran@IGT.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: How to cast VARCHAR to BYTEA and vice-versa?
Date: Mon, 14 Mar 2005 11:32:26 +0100
Message-ID: <4235683A.6D2CA65A@rodos.fzk.de> (raw)
References: <B27C8914860EE24E865D189A3735EA5310091D@lasexch03.is.ad.igt.com>

"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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