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Last round of reference page editing.

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Peter Eisentraut
2003-05-04 02:23:16 +00:00
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doc/src/sgml/ref/drop_function.sgml
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@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_function.sgml,v 1.23 2002/11/21 23:34:43 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_function.sgml,v 1.24 2003/05/04 02:23:16 petere Exp $
PostgreSQL documentation
-->
@@ -8,129 +8,96 @@ PostgreSQL documentation
<refentrytitle id="SQL-DROPFUNCTION-TITLE">DROP FUNCTION</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>
DROP FUNCTION
</refname>
<refpurpose>
remove a user-defined function
</refpurpose>
<refname>DROP FUNCTION</refname>
<refpurpose>remove a user-defined function</refpurpose>
</refnamediv>
<refsynopsisdiv>
<refsynopsisdivinfo>
<date>1999-07-20</date>
</refsynopsisdivinfo>
<synopsis>
<synopsis>
DROP FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">type</replaceable> [, ...] ] ) [ CASCADE | RESTRICT ]
</synopsis>
<refsect2 id="R2-SQL-DROPFUNCTION-1">
<refsect2info>
<date>1998-04-15</date>
</refsect2info>
<title>
Inputs
</title>
<para>
<variablelist>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>
<para>
The name (optionally schema-qualified) of an existing function.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">type</replaceable></term>
<listitem>
<para>
The type of a parameter of the function.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CASCADE</term>
<listitem>
<para>
Automatically drop objects that depend on the function
(such as operators or triggers).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>RESTRICT</term>
<listitem>
<para>
Refuse to drop the function if there are any dependent objects.
This is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
<refsect2 id="R2-SQL-DROPFUNCTION-2">
<refsect2info>
<date>1998-04-15</date>
</refsect2info>
<title>
Outputs
</title>
<para>
<variablelist>
<varlistentry>
<term><computeroutput>
DROP FUNCTION
</computeroutput></term>
<listitem>
<para>
Message returned if the command completes successfully.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>
WARNING: RemoveFunction: Function "<replaceable class="parameter">name</replaceable>" ("<replaceable class="parameter">types</replaceable>") does not exist
</computeroutput></term>
<listitem>
<para>
This message is given if the function specified does not
exist in the current database.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
</synopsis>
</refsynopsisdiv>
<refsect1 id="R1-SQL-DROPFUNCTION-1">
<refsect1info>
<date>1998-04-15</date>
</refsect1info>
<title>
Description
</title>
<refsect1>
<title>Description</title>
<para>
DROP FUNCTION will remove the definition of an existing
<command>DROP FUNCTION</command> removes the definition of an existing
function. To execute this command the user must be the
owner of the function. The input argument types to the
owner of the function. The argument types to the
function must be specified, since several different functions
may exist with the same name and different argument lists.
</para>
</refsect1>
<refsect1 id="SQL-DROPFUNCTION-notes">
<title>Notes</title>
<refsect1>
<title>Parameters</title>
<para>
Refer to
<xref linkend="sql-createfunction" endterm="sql-createfunction-title">
for information on creating functions.
</para>
<variablelist>
<varlistentry>
<term><replaceable class="parameter">name</replaceable></term>
<listitem>
<para>
The name (optionally schema-qualified) of an existing function.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">type</replaceable></term>
<listitem>
<para>
The data type of an argument of the function.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</literal></term>
<listitem>
<para>
Automatically drop objects that depend on the function (such as
operators or triggers).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</literal></term>
<listitem>
<para>
Refuse to drop the function if any objects depend on it. This
is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Diagnostics</title>
<variablelist>
<varlistentry>
<term><computeroutput>DROP FUNCTION</computeroutput></term>
<listitem>
<para>
Message returned if the command completes successfully.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>WARNING: RemoveFunction: Function <replaceable class="parameter">name</replaceable> (<replaceable class="parameter">types</replaceable>) does not exist</computeroutput></term>
<listitem>
<para>
This message is output if the function specified does not exist.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id="SQL-DROPFUNCTION-examples">
@@ -149,8 +116,8 @@ DROP FUNCTION sqrt(integer);
<title>Compatibility</title>
<para>
A <command>DROP FUNCTION</command> statement is defined in SQL99. One of
its syntax forms is similar to PostgreSQL's.
A <command>DROP FUNCTION</command> statement is defined in the SQL
standard, but it is not compatible with this command.
</para>
</refsect1>
@@ -161,6 +128,7 @@ DROP FUNCTION sqrt(integer);
<member><xref linkend="sql-createfunction" endterm="sql-createfunction-title"></member>
</simplelist>
</refsect1>
</refentry>
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