> For the complete documentation index, see [llms.txt](https://docs.postgresql.tw/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.postgresql.tw/15/client-interfaces/the-information-schema/36.26.-foreign_data_wrappers.md).

# 37.27. foreign\_data\_wrappers

## 37.27. foreign\_data\_wrappers

The view `foreign_data_wrappers` contains all foreign-data wrappers defined in the current database. Only those foreign-data wrappers are shown that the current user has access to (by way of being the owner or having some privilege).

**Table 37.25. `foreign_data_wrappers` Columns**

| <p>Column Type</p><p>Description</p>                                                                                                                                             |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p><code>foreign\_data\_wrapper\_catalog</code> <code>sql\_identifier</code></p><p>Name of the database that contains the foreign-data wrapper (always the current database)</p> |
| <p><code>foreign\_data\_wrapper\_name</code> <code>sql\_identifier</code></p><p>Name of the foreign-data wrapper</p>                                                             |
| <p><code>authorization\_identifier</code> <code>sql\_identifier</code></p><p>Name of the owner of the foreign server</p>                                                         |
| <p><code>library\_name</code> <code>character\_data</code></p><p>File name of the library that implementing this foreign-data wrapper</p>                                        |
| <p><code>foreign\_data\_wrapper\_language</code> <code>character\_data</code></p><p>Language used to implement this foreign-data wrapper</p>                                     |

***

原文：[PostgreSQL 15.19 Documentation](/15/client-interfaces/the-information-schema/36.26.-foreign_data_wrappers.md)（英文原文，待翻譯）


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