Tomas Vondra <tv(at)fuzzy(dot)cz> writes:
> What about the pg_stat_activity - is it safe to access that from auth
> hook or is that just a coincidence that it works (and might stop working
> in the future)?
It doesn't seem like a good thing to rely on. There's certainly no
testing being done that would cause us to notice if it stopped working
so early in backend startup.
regards, tom lane