51.92. pg_user_mappings

The view pg_user_mappings provides access to information about user mappings. This is essentially a publicly readable view of pg_user_mapping that leaves out the options field if the user has no rights to use it.

Table 51.93. pg_user_mappings Columns

NameTypeReferencesDescription
umidoidpg_user_mapping.oidOID of the user mapping
srvidoidpg_foreign_server.oid The OID of the foreign server that contains this mapping
srvnamenamepg_foreign_server.srvname Name of the foreign server
umuseroidpg_authid.oidOID of the local role being mapped, 0 if the user mapping is public
usenamename Name of the local user to be mapped
umoptionstext[]  User mapping specific options, as keyword=value strings

To protect password information stored as a user mapping option, the umoptions column will read as null unless one of the following applies:

  • current user is the user being mapped, and owns the server or holds USAGE privilege on it

  • current user is the server owner and mapping is for PUBLIC

  • current user is a superuser