Raul Kaubi schrieb am 20.11.2020 um 09:53: > CentOS 7 > Postgres 9 to 12 > > For monitoring purpose, I would like that certain scripts are only run in primary server. > So I am looking ways to universally discover if postgresql cluster that is running is primary or not. As the standby will be in constant recovery, you can use select pg_is_in_recovery();