Re: Altering column type from text to bytea

I just found a thread that outlines this issue and how to solve it here:
<http://archives.postgresql.org/pgsql-general/2005-12/msg01322.php>

Thanks
Alex

Am 21.03.2012 um 20:56 schrieb Alexander Reichstadt:

> Hi,
>
> when trying to change a text column to bytea I am getting the following error:
> SQL error:
>
> ERROR: column "comment" cannot be cast to type bytea
>
> In statement:
> ALTER TABLE "public"."persons" ALTER COLUMN "comment" TYPE bytea
>
>
> I found that others had the same issue but I found no solution for it. I made a test-table and though it was empty meaning the column of concern had only NULL values I got the same error when trying to change that text column to type bytea.
>
> Is it possible to change column types later on to bytea?
>
> Thanks
> Alex