Re: Grant on lo_export() - Mailing list pgsql-admin

From Tom Lane
Subject Re: Grant on lo_export()
Date
Msg-id 27170.1533132366@sss.pgh.pa.us
Whole thread Raw
In response to Grant on lo_export()  (Nelson Gonzaga <ngonzaga@yahoo.com>)
Responses Re: Grant on lo_export()  (Nelson Gonzaga <ngonzaga@yahoo.com>)
List pgsql-admin
Nelson Gonzaga <ngonzaga@yahoo.com> writes:
> Hi all,I'm trying to use lo_import / lo_export and apparently I have permission denied:
> command:select lo_export(oid_imagem, '/tmp2/erro_export1.png') fromimagem where nome_imagem = 'erro';
> ERROR: must be superuser to use server-side lo_export()
> SQL state:42501
> Hint:Anyone can use the client-side lo_export() provided by libpq.

The error message means exactly what it says.

As of v11 it'll be possible to grant usage of lo_export() to
non-superusers, but in all released branches that check is hard-wired.

Note that since you can use that function to overwrite PG data or config
files, granting use of it to someone you wouldn't trust with full
superuser would be a damfool idea anyway.

            regards, tom lane


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