Kevin Brown <kevin@sysexperts.com> writes:
> So if we wanted to make use of mandatory locks, we'd have to refrain
> from using flock().
We have no need for mandatory locks; the advisory style will do fine.
This is true because we have no desire to interoperate with any
non-Postgres code ... everyone else is supposed to stay the heck out of
$PGDATA.
regards, tom lane