Basically I find it easier to just use the “admin” procedure set_config rather than SET. It can be used anywhere, both with the interactive psql client and within a stored proc. Here is the doc:

http://www.postgresql.org/docs/9.0/interactive/functions-admin.html#FUNCTIONS-ADMIN-SET-TABLE

The nice bonus with this method is that it is working with variable substitution whereas SET won’t let you as you highlighted in your original post. Here is a code sample I have tried:

…

IF v_username IS NOT NULL THEN

    PERFORM set_config('customaudit.username', v_username, false);
    PERFORM set_config('customaudit.user_id', ''||p_user_id, false);
    PERFORM set_config('customaudit.action', p_procedure_name, false);

    -- Returning
    RETURN p_user_id;

THEN

…

and I must say I am very happy since it will allow me to add an admin user responsible for any modification in the audit tables. Note that the PERFORM is here since 9.0 won’t let you do SELECT yourverycleverfunction(); anymore.

I find myself having a range as well. I find petite girls with dark hair and dark eyes the most attractive; but, by “petite” I mean “built modestly” rather than “skinny.” I actually find myself preferring girls with a little bit of meat to them as opposed to girls that society terms “supermodels” and the psychologists term “eating disorder.” I think we’re all just born with certain attractions programmed into us, and they can refine themselves as our lives go on. It just so happens that the vast majority of us born have this programming attuned to “opposite sex of some variety,” but we’ve obviously seen massive “mutations” in that programming.

At the end of the day, between two consenting adults, whomever they happen to find attractive is no one’s concern but their own.