Jim Nasby <decibel(at)decibel(dot)org> writes:
> AFAIK there isn't, and it would be useful to have. But FSM info alone
> doesn't tell you the whole picture; you'd have to know that vacuum
> couldn't find space in the FSM to store some pages. So perhaps what's
> really needed is information about how many pages in a relation
> couldn't be put into the FSM the last time a vacuum was run.
Curiously enough, that's exactly what the FSM stats tell you now.
regards, tom lane