Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> Also it'd be nice to have it a (4th?) level which would show the results
> of the equations being applied.
That I think would fall more naturally into the category of debug
support --- I'm happy if we just emit that at DEBUG1 and let people
select it with log_min_messages.
regards, tom lane