user_mappings

The user_mappings view contains all of the user mappings defined in the current database. LightDB-A Database displays only those user mappings to which the current user has access (by way of being the owner or having some privilege).

column type references description
authorization_identifier sql_identifier   Name of the user being mapped, or PUBLIC if the mapping is public.
foreign_server_catalog sql_identifier   Name of the database in which the foreign server used by this mapping is defined (always the current database).
foreign_server_name sql_identifier   Name of the foreign server used by this mapping.

Parent topic: System Catalogs Definitions