Gordon Ross <gr306(at)ucs(dot)cam(dot)ac(dot)uk> writes:
> Sorry, no joy :-(
> grails=> SELECT current_setting('phone.id');
> ERROR: unrecognized configuration parameter "phone.id"
> grails=> SELECT coalesce(current_setting('phone.id'),'SYSTEM');
> ERROR: unrecognized configuration parameter "phone.id"
You could use a SELECT from pg_settings to probe for the value
of the parameter without getting an error.
regards, tom lane