Re: Question on TRUNCATE privleges - Mailing list pgsql-novice

From Tom Lane
Subject Re: Question on TRUNCATE privleges
Date
Msg-id 28265.1109285264@sss.pgh.pa.us
Whole thread Raw
In response to Re: Question on TRUNCATE privleges  ("Keith Worthington" <keithw@narrowpathinc.com>)
List pgsql-novice
"Keith Worthington" <keithw@narrowpathinc.com> writes:
> On Thu, 24 Feb 2005 17:15:42 -0500, Tom Lane wrote
>> Yeah.  I've dropped the idea personally -- the suggestion that the table
>> owner can provide a SECURITY DEFINER procedure to do the TRUNCATE if
>> he wants to allow others to do it seems to me to cover the problem.

> Could someone point me in the direction of documentation on this SECURITY
> DEFINER feature?

See CREATE FUNCTION.  Something like (untested)

create function truncate_my_table() returns void as
$$ truncate my_table $$ language sql security definer;

You'd probably then revoke the default public EXECUTE rights on this
function, and grant EXECUTE only to selected users.

            regards, tom lane

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