ltcluster requires that the database defined in the conninfo
setting contains the ltcluster
extension. The database user defined in the
conninfo
setting must be able to access this database and
the database objects contained within the extension.
The ltcluster
extension can only be installed by a superuser.
If the ltcluster user is a superuser, ltcluster will create the extension automatically.
Alternatively, the extension can be created manually by a superuser
(with "CREATE EXTENSION ltcluster
") before executing
ltcluster primary register.