The following bug has been logged on the website:
Bug reference: 13441
Logged by: digoal
Email address: digoal(at)126(dot)com
PostgreSQL version: Unsupported/Unknown
Operating system: centos 6.x x64
Description:
In PostgreSQL 9.5 doc, pg_settings.pending_restart boolean true if the value
has been changed in the configuration file but needs a restart; or false
otherwise.
BUT, when i change the configure file, by alter system , or modify it direct
in postgresql.conf.
the value cann't reflect by pg_settings.