53.36. pg_user_mappings
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## 53.36. 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 53.36. pg_user_mappings Columns

Column Type Description
`umid` oid (references pg_user_mapping.`oid`) OID of the user mapping
`srvid` oid (references pg_foreign_server.`oid`) The OID of the foreign server that contains this mapping
`srvname` name (references pg_foreign_server.`srvname`) Name of the foreign server
`umuser` oid (references pg_authid.`oid`) OID of the local role being mapped, or zero if the user mapping is public
`usename` name Name of the local user to be mapped
`umoptions` text[] 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

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