3.34. User mappings

The user mapping object typically encapsulates connection information that a foreign data wrapper uses together with the information encapsulated by a foreign server to access an external data resource.

Attribute	Description
Server	This attribute is used to specify which foreign server the user mapping will be associated with.
Options	The options typically define the actual user name and password of the user mapping.

References

User mapping DDL

https://www.postgresql.org/docs/current/sql-createusermapping.html