<p>
PostgreSQL's extensibility enables users to add new functionality to a running production database, and use them for tasks no other database system can perform. Version 9.1 adds critical new extensibility features, including:
</p><dl>
-<dt><b>Foreign Data Wrappers (FDW):</b></dt><dd> As part of our standards-compliant SQL/MED support for querying data outside the PostgreSQL database, FDWs allow users to create "drivers" and attach external data sources, which can be used as read-only tables. FDWs make PostgreSQL a powerful tool for enterprise data integration, and they make migration easier. FDWs initially available from the community include comma-separated-value (CSV) files, Oracle, MySQL, CouchDB, and Twitter sources. And many more are expected in the near future.</dd>
+<dt><b>Foreign Data Wrappers (FDW):</b></dt><dd> As part of our standards-compliant SQL/MED support for querying data outside the PostgreSQL database, FDWs allow users to create "drivers" and attach external data sources, which can be used as read-only tables. FDWs make PostgreSQL a powerful tool for enterprise data integration, and they make migration easier. FDWs initially available from the community include comma-separated-value (CSV) files, Oracle, MySQL, CouchDB, and even Twitter sources. And many more are expected in the near future.</dd>
<dt><b>Extensions:</b></dt><dd> While PostgreSQL has always been extensible, now users can easily create, load, upgrade, and manage any of dozens of database extensions using the EXTENSION database object. The new site PGXN.org offers a repository for contributing and downloading extensions.</dd>
</dl>
<p>
<p>
PostgreSQL's extensibility enables users to add new functionality to a running production database, and use them for tasks no other database system can perform. Version 9.1 adds critical new extensibility features, including:
</p><dl>
-<dt><b>Foreign Data Wrappers (FDW):</b></dt><dd> As part of our standards-compliant SQL/MED support for querying data outside the PostgreSQL database, FDWs allow users to create "drivers" and attach external data sources, which can be used as read-only tables. FDWs make PostgreSQL a powerful tool for enterprise data integration, and they make migration easier. FDWs initially available from the community include comma-separated-value (CSV) files, Oracle, MySQL, CouchDB, and Twitter sources. And many more are expected in the near future.</dd>
+<dt><b>Foreign Data Wrappers (FDW):</b></dt><dd> As part of our standards-compliant SQL/MED support for querying data outside the PostgreSQL database, FDWs allow users to create "drivers" and attach external data sources, which can be used as read-only tables. FDWs make PostgreSQL a powerful tool for enterprise data integration, and they make migration easier. FDWs initially available from the community include comma-separated-value (CSV) files, Oracle, MySQL, CouchDB, and even Twitter sources. And many more are expected in the near future.</dd>
<dt><b>Extensions:</b></dt><dd> While PostgreSQL has always been extensible, now users can easily create, load, upgrade, and manage any of dozens of database extensions using the EXTENSION database object. The new site PGXN.org offers a repository for contributing and downloading extensions.</dd>
</dl>
<p>