postgresql2@realityexists.net writes:
> For most settings
> https://www.postgresql.org/docs/9.6/static/runtime-config-logging.html says
> "Only superusers can change this setting."
> It does not say this for "log_lock_waits", but superuser rights are still
> required (tested on 9.6.3, but I think it's always been the case).
Agreed, that's an oversight. Will fix, thanks for the report.
regards, tom lane