21.5. Default Roles

PostgreSQL provides a set of default roles which provide access to certain, commonly needed, privileged capabilities and information. Administrators can GRANT these roles to users and/or other roles in their environment, providing those users with access to the specified capabilities and information.

The default roles are described in 표 21-1. Note that the specific permissions for each of the default roles may change in the future as additional capabilities are added. Administrators should monitor the release notes for changes.

표 21-1. Default Roles

RoleAllowed Access
pg_signal_backendSend signals to other backends (eg: cancel query, terminate).

Administrators can grant access to these roles to users using the GRANT command:

GRANT pg_signal_backend TO admin_user;