Re: Cast text to bytea

Have you seen this?
http://www.postgresql.org/docs/current/static/datatype-binary.html

Maybe you need some backslashes?

-----Original Message-----
From: pgsql-admin-owner(at)postgresql(dot)org
[mailto:pgsql-admin-owner(at)postgresql(dot)org]On Behalf Of Alvar Freude
Sent: Tuesday, December 02, 2003 5:07 PM
To: pgsql-admin(at)postgresql(dot)org
Subject: [ADMIN] Cast text to bytea

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Hi,

I want to change a column from text to bytea; since it seems that alter
table can't change the column type, i have to add a temporary column and
copy the data from the old one to the new, delete the old and rename the
new.

But it seems that Postgres can't cast text to bytea:

> UPDATE forum_gtree SET gid2=gid::bytea;
ERROR: Cannot cast type text to bytea

How can I do this?

encode/decode seems to handle only bytea data:

http://www.postgresql.org/docs/current/interactive/functions-string.html

Thanks && Ciao
Alvar

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