37.27. foreign\_data\_wrappers

|           37.27. `foreign_data_wrappers`           |                             |                                  |                  |                                               |
|:--------------------------------------------------:|-----------------------------|----------------------------------|------------------|-----------------------------------------------|
|[Prev](infoschema-foreign-data-wrapper-options.html)|[Up](information-schema.html)|Chapter 37. The Information Schema|[Home](index.html)| [Next](infoschema-foreign-server-options.html)|

---

## 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**

|                                                         Column Type<br/><br/> Description                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------|
|`foreign_data_wrapper_catalog` `sql_identifier`<br/><br/> Name of the database that contains the foreign-data wrapper (always the current database)|
|                              `foreign_data_wrapper_name` `sql_identifier`<br/><br/> Name of the foreign-data wrapper                              |
|                           `authorization_identifier` `sql_identifier`<br/><br/> Name of the owner of the foreign server                           |
|                  `library_name` `character_data`<br/><br/> File name of the library that implementing this foreign-data wrapper                   |
|                  `foreign_data_wrapper_language` `character_data`<br/><br/> Language used to implement this foreign-data wrapper                  |

---

|[Prev](infoschema-foreign-data-wrapper-options.html)|[Up](information-schema.html)| [Next](infoschema-foreign-server-options.html)|
|:---------------------------------------------------|:---------------------------:|----------------------------------------------:|
|       37.26. `foreign_data_wrapper_options`        |     [Home](index.html)      |        37.28. `foreign_server_options`        |

 // \<![CDATA[ \<-- For SVG support if ('WebSocket' in window) { (function() { function refreshCSS() { var sheets = [].slice.call(document.getElementsByTagName("link")); var head = document.getElementsByTagName("head")[0]; for (var i = 0; i \< sheets.length; ++i) { var elem = sheets[i]; head.removeChild(elem); var rel = elem.rel; if (elem.href && typeof rel != "string" || rel.length == 0 || rel.toLowerCase() == "stylesheet") { var url = elem.href.replace(/(&|\\?)\_cacheOverride=\\d+/, ''); elem.href = url + (url.indexOf('?') \>= 0 ? '&' : '?') + '\_cacheOverride=' + (new Date().valueOf()); } head.appendChild(elem); } } var protocol = window.location.protocol === 'http:' ? 'ws://' : 'wss://'; var address = protocol + window.location.host + window.location.pathname + '/ws'; var socket = new WebSocket(address); socket.onmessage = function(msg) { if (msg.data == 'reload') window.location.reload(); else if (msg.data == 'refreshcss') refreshCSS(); }; console.log('Live reload enabled.'); })(); } // ]]\>