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                            # 47.52\. `pg_user_mapping`

`pg_user_mapping`表存儲從本地用戶到遠程的映射。 普通用戶訪問這個表是受到限制的，使用視圖訪問 [`pg_user_mappings`](#calibre_link-990)。



**Table 47-53\. `pg_user_mapping` 字段**


| 名字 | 類型 | 引用 | 描述 |
| --- | --- | --- | --- |
| `oid` | `oid` | 行標識符(隱藏屬性；必須明確選擇) |
| `umuser` | `oid` | `pg_authid`.oid | 被映射的本地用戶的OID，如果用戶映射是公共的則為0 |
| `umserver` | `oid` | `pg_foreign_server`.oid | 包含這個映射的外部服務器的OID |
| `umoptions` | `text[]` | 用戶映射指定選項，使用"keyword=value"格式的字符串 |








                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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