Re: let's make the list of reportable GUCs configurable (was Re: Add%r substitution for psql prompts to show recovery status)

On 10/11/19 4:30 PM, Robert Haas wrote:

> But, if it does need to be changed, it seems like a terrible idea to
> allow it to be done via SQL. Otherwise, the user can break the driver
> by using SQL to set the list to something that the driver's not
> expecting, and there's nothing the driver can do to prevent it.

... unless there is something like a (perhaps more generally useful)
BECAUSE I HAVE :cookie AND I SAY SO clause.[1]