pg_user_mappingThe catalog pg_user_mapping stores the mappings from local user to remote. Access to this catalog is restricted from normal users, use the view pg_user_mappings instead.
Table 52.64. pg_user_mapping Columns
| Column Type Description | 
|---|
| 
 Row identifier | 
| 
 OID of the local role being mapped, or zero if the user mapping is public | 
| 
 The OID of the foreign server that contains this mapping | 
| 
 User mapping specific options, as “keyword=value” strings | 
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