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Add some useful cross-references to the CREATE EXTENSION reference page.

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Per a suggestion from Josh Kupershmidt, though I modified his patch
quite a lot.
This commit is contained in:
Tom Lane 2011-04-13 02:56:33 -04:00
parent d64713df7e
commit dd95a1d3dd
1 changed files with 26 additions and 6 deletions
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32
doc/src/sgml/ref/create_extension.sgml
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@ -45,11 +45,6 @@ CREATE EXTENSION [ IF NOT EXISTS ] <replaceable class="parameter">extension_name
<command>DROP EXTENSION</command> is issued.
</para>
<para>
For information about writing new extensions, see
<xref linkend="extend-extensions">.
</para>
<para>
Loading an extension requires the same privileges that would be
required to create its component objects. For most extensions this
@ -72,7 +67,7 @@ CREATE EXTENSION [ IF NOT EXISTS ] <replaceable class="parameter">extension_name
Do not throw an error if an extension with the same name already
exists. A notice is issued in this case. Note that there is no
guarantee that the existing extension is anything like the one that
would have been created.
would have been created from the currently-available script file.
</para>
</listitem>
</varlistentry>
@ -142,6 +137,31 @@ CREATE EXTENSION [ IF NOT EXISTS ] <replaceable class="parameter">extension_name
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
Before you can use <command>CREATE EXTENSION</> to load an extension
into a database, the extension's supporting files must be installed.
Information about installing the extensions supplied with
<productname>PostgreSQL</productname> can be found in
<link linkend="contrib">Additional Supplied Modules</link>.
</para>
<para>
The extensions currently available for loading can be identified from the
<link linkend="view-pg-available-extensions"><structname>pg_available_extensions</structname></link>
or
<link linkend="view-pg-available-extension-versions"><structname>pg_available_extension_versions</structname></link>
system views.
</para>
<para>
For information about writing new extensions, see
<xref linkend="extend-extensions">.
</para>
</refsect1>
<refsect1>
<title>Examples</title>