mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-10-02 16:31:15 +02:00
136 lines
3.7 KiB
Plaintext
136 lines
3.7 KiB
Plaintext
|
<!--
|
||
|
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_opfamily.sgml,v 1.1 2007/01/23 05:07:17 tgl Exp $
|
||
|
PostgreSQL documentation
|
||
|
-->
|
||
|
|
||
|
<refentry id="SQL-DROPOPFAMILY">
|
||
|
<refmeta>
|
||
|
<refentrytitle id="SQL-DROPOPFAMILY-TITLE">DROP OPERATOR FAMILY</refentrytitle>
|
||
|
<refmiscinfo>SQL - Language Statements</refmiscinfo>
|
||
|
</refmeta>
|
||
|
|
||
|
<refnamediv>
|
||
|
<refname>DROP OPERATOR FAMILY</refname>
|
||
|
<refpurpose>remove an operator family</refpurpose>
|
||
|
</refnamediv>
|
||
|
|
||
|
<indexterm zone="sql-dropopfamily">
|
||
|
<primary>DROP OPERATOR FAMILY</primary>
|
||
|
</indexterm>
|
||
|
|
||
|
<refsynopsisdiv>
|
||
|
<synopsis>
|
||
|
DROP OPERATOR FAMILY [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> USING <replaceable class="PARAMETER">index_method</replaceable> [ CASCADE | RESTRICT ]
|
||
|
</synopsis>
|
||
|
</refsynopsisdiv>
|
||
|
|
||
|
<refsect1>
|
||
|
<title>Description</title>
|
||
|
|
||
|
<para>
|
||
|
<command>DROP OPERATOR FAMILY</command> drops an existing operator family.
|
||
|
To execute this command you must be the owner of the operator family.
|
||
|
</para>
|
||
|
|
||
|
<para>
|
||
|
<command>DROP OPERATOR FAMILY</command> includes dropping any operator
|
||
|
classes contained in the family, but it does not drop any of the operators
|
||
|
or functions referenced by the family. If there are any indexes depending
|
||
|
on operator classes within the family, you will need to specify
|
||
|
<literal>CASCADE</> for the drop to complete.
|
||
|
</para>
|
||
|
</refsect1>
|
||
|
|
||
|
<refsect1>
|
||
|
<title>Parameters</title>
|
||
|
|
||
|
<variablelist>
|
||
|
|
||
|
<varlistentry>
|
||
|
<term><literal>IF EXISTS</literal></term>
|
||
|
<listitem>
|
||
|
<para>
|
||
|
Do not throw an error if the operator family does not exist.
|
||
|
A notice is issued in this case.
|
||
|
</para>
|
||
|
</listitem>
|
||
|
</varlistentry>
|
||
|
|
||
|
<varlistentry>
|
||
|
<term><replaceable class="parameter">name</replaceable></term>
|
||
|
<listitem>
|
||
|
<para>
|
||
|
The name (optionally schema-qualified) of an existing operator family.
|
||
|
</para>
|
||
|
</listitem>
|
||
|
</varlistentry>
|
||
|
|
||
|
<varlistentry>
|
||
|
<term><replaceable class="parameter">index_method</replaceable></term>
|
||
|
<listitem>
|
||
|
<para>
|
||
|
The name of the index access method the operator family is for.
|
||
|
</para>
|
||
|
</listitem>
|
||
|
</varlistentry>
|
||
|
|
||
|
<varlistentry>
|
||
|
<term><literal>CASCADE</literal></term>
|
||
|
<listitem>
|
||
|
<para>
|
||
|
Automatically drop objects that depend on the operator family.
|
||
|
</para>
|
||
|
</listitem>
|
||
|
</varlistentry>
|
||
|
|
||
|
<varlistentry>
|
||
|
<term><literal>RESTRICT</literal></term>
|
||
|
<listitem>
|
||
|
<para>
|
||
|
Refuse to drop the operator family if any objects depend on it.
|
||
|
This is the default.
|
||
|
</para>
|
||
|
</listitem>
|
||
|
</varlistentry>
|
||
|
</variablelist>
|
||
|
</refsect1>
|
||
|
|
||
|
<refsect1>
|
||
|
<title>Examples</title>
|
||
|
|
||
|
<para>
|
||
|
Remove the B-tree operator family <literal>float_ops</literal>:
|
||
|
|
||
|
<programlisting>
|
||
|
DROP OPERATOR FAMILY float_ops USING btree;
|
||
|
</programlisting>
|
||
|
|
||
|
This command will not succeed if there are any existing indexes
|
||
|
that use operator classes within the family. Add <literal>CASCADE</> to
|
||
|
drop such indexes along with the operator family.
|
||
|
</para>
|
||
|
</refsect1>
|
||
|
|
||
|
<refsect1>
|
||
|
<title>Compatibility</title>
|
||
|
|
||
|
<para>
|
||
|
There is no <command>DROP OPERATOR FAMILY</command> statement in the
|
||
|
SQL standard.
|
||
|
</para>
|
||
|
</refsect1>
|
||
|
|
||
|
<refsect1>
|
||
|
<title>See Also</title>
|
||
|
|
||
|
<simplelist type="inline">
|
||
|
<member><xref linkend="sql-alteropfamily" endterm="sql-alteropfamily-title"></member>
|
||
|
<member><xref linkend="sql-createopfamily" endterm="sql-createopfamily-title"></member>
|
||
|
<member><xref linkend="sql-alteropclass" endterm="sql-alteropclass-title"></member>
|
||
|
<member><xref linkend="sql-createopclass" endterm="sql-createopclass-title"></member>
|
||
|
<member><xref linkend="sql-dropopclass" endterm="sql-dropopclass-title"></member>
|
||
|
</simplelist>
|
||
|
</refsect1>
|
||
|
|
||
|
</refentry>
|