mirror of
https://github.com/postgres/postgres.git
synced 2025-05-02 11:44:50 +03:00
184 lines
4.0 KiB
Plaintext
184 lines
4.0 KiB
Plaintext
<REFENTRY ID="SQL-DROPFUNCTION">
|
|
<REFMETA>
|
|
<REFENTRYTITLE>
|
|
DROP FUNCTION
|
|
</REFENTRYTITLE>
|
|
<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
|
|
</REFMETA>
|
|
<REFNAMEDIV>
|
|
<REFNAME>
|
|
DROP FUNCTION
|
|
</REFNAME>
|
|
<REFPURPOSE>
|
|
Removes a user-defined C function
|
|
</REFPURPOSE>
|
|
|
|
<REFSYNOPSISDIV>
|
|
<REFSYNOPSISDIVINFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSYNOPSISDIVINFO>
|
|
<SYNOPSIS>
|
|
DROP FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">type</replaceable> [, ...] ] )
|
|
</SYNOPSIS>
|
|
|
|
<REFSECT2 ID="R2-SQL-DROPFUNCTION-1">
|
|
<REFSECT2INFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSECT2INFO>
|
|
<TITLE>
|
|
Inputs
|
|
</TITLE>
|
|
<PARA>
|
|
</PARA>
|
|
<VARIABLELIST>
|
|
<VARLISTENTRY>
|
|
<TERM>
|
|
<replaceable class="parameter"> name</replaceable>
|
|
</TERM>
|
|
<LISTITEM>
|
|
<PARA>
|
|
The name of an existing function.
|
|
</PARA>
|
|
</LISTITEM>
|
|
</VARLISTENTRY>
|
|
<VARLISTENTRY>
|
|
<TERM>
|
|
<replaceable class="parameter">type</replaceable>
|
|
</TERM>
|
|
<LISTITEM>
|
|
<PARA>
|
|
The type of function parameters.
|
|
</PARA>
|
|
</LISTITEM>
|
|
</VARLISTENTRY>
|
|
</variablelist>
|
|
</REFSECT2>
|
|
|
|
<REFSECT2 ID="R2-SQL-DROPFUNCTION-2">
|
|
<REFSECT2INFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSECT2INFO>
|
|
<TITLE>
|
|
Outputs
|
|
</TITLE>
|
|
<PARA>
|
|
|
|
<VARIABLELIST>
|
|
<VARLISTENTRY>
|
|
<TERM>
|
|
<ReturnValue>DROP</ReturnValue>
|
|
</TERM>
|
|
<LISTITEM>
|
|
<PARA>
|
|
Message returned if the command completes successfully.
|
|
</PARA>
|
|
</LISTITEM>
|
|
</VARLISTENTRY>
|
|
<VARLISTENTRY>
|
|
<TERM>
|
|
<ReturnValue>WARN RemoveFunction: Function "<replaceable class="parameter">name</replaceable>" ("<replaceable class="parameter">types</replaceable>") does not exist</ReturnValue>
|
|
</TERM>
|
|
<LISTITEM>
|
|
<PARA>
|
|
This message is given if the function specified does not
|
|
exist in the current database.
|
|
|
|
</VARIABLELIST>
|
|
</REFSECT2>
|
|
</REFSYNOPSISDIV>
|
|
|
|
<REFSECT1 ID="R1-SQL-DROPFUNCTION-1">
|
|
<REFSECT1INFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSECT1INFO>
|
|
<TITLE>
|
|
Description
|
|
</TITLE>
|
|
<PARA>
|
|
DROP FUNCTION will remove references to an existing C
|
|
function. To execute this command the user must be the
|
|
owner of the function. The input argument types to the
|
|
function must be specified, as only the function with the
|
|
given name and argument types will be removed.
|
|
</PARA>
|
|
|
|
<REFSECT2 ID="R2-SQL-DROPFUNCTION-3">
|
|
<REFSECT2INFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSECT2INFO>
|
|
<TITLE>
|
|
Notes
|
|
</TITLE>
|
|
<PARA>
|
|
Refer to <citerefentry>
|
|
<refentrytitle>
|
|
CREATE FUNCTION
|
|
</refentrytitle>
|
|
</citerefentry>
|
|
to create aggregate functions.
|
|
</PARA>
|
|
</REFSECT2>
|
|
|
|
<REFSECT1 ID="R1-SQL-DROPFUNCTION-2">
|
|
<TITLE>
|
|
Usage
|
|
</TITLE>
|
|
<PARA>
|
|
This command removes the square root function:
|
|
</PARA>
|
|
<ProgramListing>
|
|
DROP FUNCTION sqrt(int4);
|
|
</ProgramListing>
|
|
</REFSECT1>
|
|
<REFSECT1 ID="R1-SQL-DROPFUNCTION-3">
|
|
<TITLE>
|
|
Bugs
|
|
</TITLE>
|
|
<PARA>
|
|
No checks are made to ensure that types, operators or access
|
|
methods that rely on the function have been removed first.
|
|
</PARA>
|
|
</REFSECT1>
|
|
|
|
<REFSECT1 ID="R1-SQL-DROPFUNCTION-4">
|
|
<TITLE>
|
|
Compatibility
|
|
</TITLE>
|
|
<PARA>
|
|
DROP FUNCTION is a <productname>Postgres</productname> language extension.
|
|
</PARA>
|
|
|
|
<REFSECT2 ID="R2-SQL-DROPFUNCTION-4">
|
|
<REFSECT2INFO>
|
|
<DATE>1998-04-15</DATE>
|
|
</REFSECT2INFO>
|
|
<TITLE>
|
|
SQL/PSM
|
|
</TITLE>
|
|
<PARA>
|
|
SQL/PSM is a proposed standard to enable function extensibility.
|
|
The SQL/PSM DROP FUNCTION statement has the following syntax:
|
|
<programlisting>
|
|
DROP [ SPECIFIC ] FUNCTION <replaceable class="parameter">name</replaceable> { RESTRICT | CASCADE }</programlisting>
|
|
</PARA>
|
|
</refsect2>
|
|
</refsect1>
|
|
</REFENTRY>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"../reference.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:"/usr/lib/sgml/catalog"
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
-->
|