<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_function.sgml,v 1.13 2001/09/03 12:57:49 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_function.sgml,v 1.14 2001/09/13 19:40:34 petere Exp $
Postgres documentation
-->
function must be specified, as only the function with the
given name and argument types will be removed.
</para>
+ </refsect1>
- <refsect2 id="R2-SQL-DROPFUNCTION-3">
- <refsect2info>
- <date>1998-04-15</date>
- </refsect2info>
- <title>
- Notes
- </title>
+ <refsect1 id="SQL-DROPFUNCTION-notes">
+ <title>Notes</title>
<para>
Refer to
No checks are made to ensure that types, operators or access
methods that rely on the function have been removed first.
</para>
- </refsect2>
</refsect1>
- <refsect1 id="R1-SQL-DROPFUNCTION-2">
- <title>
- Usage
- </title>
+ <refsect1 id="SQL-DROPFUNCTION-examples">
+ <title>Examples</title>
<para>
This command removes the square root function:
- <programlisting>
-DROP FUNCTION sqrt(int4);
- </programlisting>
+<programlisting>
+DROP FUNCTION sqrt(integer);
+</programlisting>
</para>
</refsect1>
- <refsect1 id="R1-SQL-DROPFUNCTION-4">
- <title>
- Compatibility
- </title>
+ <refsect1 id="SQL-DROPFUNCTION-compatibility">
+ <title>Compatibility</title>
- <refsect2 id="R2-SQL-DROPFUNCTION-4">
- <refsect2info>
- <date>1999-07-20</date>
- </refsect2info>
- <title>
- SQL92
- </title>
+ <para>
+ A <command>DROP FUNCTION</command> statement is defined in SQL99. One of its syntax forms is:
- <para>
- <command>DROP FUNCTION</command>
- is a <productname>Postgres</productname> language extension.
- </para>
- </refsect2>
+<synopsis>
+DROP FUNCTION <replaceable class="parameter">name</replaceable> (<replaceable>arg</>, ...) { RESTRICT | CASCADE }
+</synopsis>
- <refsect2 id="R2-SQL-DROPFUNCTION-5">
- <refsect2info>
- <date>1998-04-15</date>
- </refsect2info>
- <title>
- SQL/PSM
- </title>
- <para>
- SQL/PSM is a standard to enable function extensibility.
- The SQL/PSM DROP FUNCTION statement has the following syntax:
+ where <literal>CASCADE</> specifies dropping all objects that
+ depend on the function and <literal>RESTRICT</literal> refuses to
+ drop the function if dependent objects exist.
+ </para>
+ </refsect1>
- <synopsis>
-DROP [ SPECIFIC ] FUNCTION <replaceable class="parameter">name</replaceable> { RESTRICT | CASCADE }
- </synopsis>
- </para>
- </refsect2>
+ <refsect1>
+ <title>See Also</title>
+
+ <simplelist type="inline">
+ <member><xref linkend="sql-createfunction"></member>
+ </simplelist>
</refsect1>
</refentry>