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PG_FOREIGN_DATA_WRAPPER
链接复制成功！
更新时间：
2019/06/24 GMT+08:00
PG_FOREIGN_DATA_WRAPPER系统表存储外部数据封装器定义。一个外部数据封装器是在外部服务器上驻留外部数据的机制，是可以访问的。
名字 |
类型 |
引用 |
描述 |
|---|---|---|---|
oid |
oid |
- |
行标识符(隐藏属性；必须明确选择)。 |
fdwname |
name |
- |
外部数据封装器名。 |
fdwowner |
oid |
PG_AUTHID.oid |
外部数据封装器的所有者。 |
fdwhandler |
oid |
PG_PROC.oid |
引用一个负责为外部数据封装器提供扩展例程的处理函数。如果没有提供处理函数则为零。 |
fdwvalidator |
oid |
PG_PROC.oid |
引用一个验证器函数，这个验证器函数负责验证给予外部数据封装器的选项、 外部服务器选项和使用外部数据封装器的用户映射的有效性。 如果没有提供验证器函数则为零。 |
fdwacl |
aclitem[] |
- |
访问权限。 |
fdwoptions |
text[] |
- |
外部数据封装器指定选项，使用“keyword=value”格式的字符串。 |
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