similar to <ulink url="http://sourceforge.net">SourceForge.net</> in its

feature set, providing mailing lists, forums, bug tracking, SCM, and web

hosting. If you have a <productname>PostgreSQL</>-related open source

project that you would like to have hosted atPgFoundy, please feel free

to create a new project.

project that you would like to have hosted atPgFoundry, please feel free

to create a new project there.

</para>

<sect1 id="external-interfaces">

</table>

</sect1>

<sect1 id="external-admin-tools">

<title>Administration Tools</title>

<indexterm>

<primary>administration tools</primary>

<secondary>externally maintained</secondary>

</indexterm>

<para>

There are several administration tools available for

<productname>PostgreSQL</>. The most popular is

<application><ulink url="http://www.pgadmin.org/">pgAdmin III</ulink></>,

and there are several commercially available ones as well.

</para>

</sect1>

<sect1 id="external-pl">

<title>Procedural Languages</title>

<title>Extensions</title>

<indexterm>

<primary>extensions</primary>

<primary>extension</primary>

<secondary>externally maintained</secondary>

</indexterm>

<para>

<productname>PostgreSQL</> is designed to be easily extensible. For

this reason, extensions loaded into the database can function just

like features that arepackaged with the database. The

this reason, extensions loaded into the database can function

justlike features that arebuilt in. The

<filename>contrib/</> directory shipped with the source code

contains a large number of extensions. The <filename>README</> file

in that directory contains a summary. They include conversion

tools, full-text indexing, <acronym>XML</> tools, and additional

data types and indexing methods. Other extensions are developed

contains several extensions, which are described in

<xref linkend="contrib">. Other extensions are developed

independently, like <application><ulink

url="http://www.postgis.org/">PostGIS</ulink></>. Even

<productname>PostgreSQL</> replication solutionsare developed

<productname>PostgreSQL</> replication solutionscan be developed

externally. For example, <application> <ulink

url="http://www.slony.info">Slony-I</ulink></> is a popular

master/standby replication solution that is developed independently

from the core project.

</para>

<para>

There are several administration tools available for

<productname>PostgreSQL</>. The most popular is

<application><ulink url="http://www.pgadmin.org/">pgAdmin III</ulink></>,

and there are several commercially available ones as well.

</para>

</sect1>

</appendix>