Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes:
> I have it PGC_SUSET because it does send some tiny amount of
> information about the blocking process (the PID) to the blocked
> process. That is probably too paranoid, because the PID can be seen
> by anyone in the pg_locks table anyway.
Why not just leave out the PID? I think it's often far too simplistic
to blame a lock wait on a single other process, anyway.
regards, tom lane