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

From Nelson Gonzaga
Subject Re: Grant on lo_export()
Date
Msg-id 1115222796.574920.1533148486880@mail.yahoo.com
Whole thread Raw
In response to Re: Grant on lo_export()  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-admin
I understand that I have to use libpq for the lo_import command to work.
but I did not find .NET code to use this library.
Is there an example? Or just this in C ++ [1]?

[1] https://www.postgresql.org/docs/current/static/lo-examplesect.html


Em quarta-feira, 1 de agosto de 2018 11:06:43 BRT, Tom Lane <tgl@sss.pgh.pa.us> escreveu:


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

pgsql-admin by date:

Previous
From: Ron
Date:
Subject: Re: postgres port 5434 not being allowed when remote server isaccessing
Next
From: babak houman
Date:
Subject: Optimal SSD based RAID 0 config