1999-07-22 17:09:15 +02:00
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$PostgreSQL: pgsql/doc/src/sgml/ref/drop_rule.sgml,v 1.21 2006/06/16 22:27:55 adunstan Exp $
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2001-12-08 04:24:40 +01:00
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PostgreSQL documentation
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1999-07-22 17:09:15 +02:00
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-->
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1999-07-06 19:16:42 +02:00
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<refentry id="SQL-DROPRULE">
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<refmeta>
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<refentrytitle id="SQL-DROPRULE-TITLE">DROP RULE</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>DROP RULE</refname>
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<refpurpose>remove a rewrite rule</refpurpose>
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</refnamediv>
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<indexterm zone="sql-droprule">
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<primary>DROP RULE</primary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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DROP RULE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> ON <replaceable class="PARAMETER">relation</replaceable> [ CASCADE | RESTRICT ]
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>DROP RULE</command> drops a rewrite rule.
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><literal>IF EXISTS</literal></term>
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<listitem>
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<para>
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Do not throw an error if the rule does not exist. A notice is issued
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in this case.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">name</replaceable></term>
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<listitem>
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<para>
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The name of the rule to drop.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">relation</replaceable></term>
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<listitem>
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<para>
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The name (optionally schema-qualified) of the table or view that
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the rule applies to.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>CASCADE</literal></term>
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<listitem>
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<para>
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Automatically drop objects that depend on the rule.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>RESTRICT</literal></term>
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<listitem>
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<para>
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Refuse to drop the rule if any objects depend on it. This is
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the default.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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To drop the rewrite rule <literal>newrule</literal>:
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<programlisting>
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DROP RULE newrule ON mytable;
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</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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There is no <command>DROP RULE</command> statement in the SQL standard.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createrule" endterm="sql-createrule-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:nil
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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