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Since some preparation work had already been done, the only source changes left were changing empty-element tags like <xref linkend="foo"> to <xref linkend="foo"/>, and changing the DOCTYPE. The source files are still named *.sgml, but they are actually XML files now. Renaming could be considered later. In the build system, the intermediate step to convert from SGML to XML is removed. Everything is build straight from the source files again. The OpenSP (or the old SP) package is no longer needed. The documentation toolchain instructions are updated and are much simpler now. Peter Eisentraut, Alexander Lakhin, Jürgen Purtz
112 lines
2.5 KiB
Plaintext
112 lines
2.5 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_access_method.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-drop-access-method">
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<indexterm zone="sql-drop-access-method">
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<primary>DROP ACCESS METHOD</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>DROP ACCESS METHOD</refentrytitle>
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<manvolnum>7</manvolnum>
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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 ACCESS METHOD</refname>
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<refpurpose>remove an access method</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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DROP ACCESS METHOD [ IF EXISTS ] <replaceable class="parameter">name</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 ACCESS METHOD</command> removes an existing access method.
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Only superusers can drop access methods.
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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 access method does not exist.
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A notice is issued 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 an existing access method.
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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 access method
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(such as operator classes, operator families, and indexes),
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and in turn all objects that depend on those objects
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(see <xref linkend="ddl-depend"/>).
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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 access method if any objects depend on it.
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This is 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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Drop the access method <literal>heptree</literal>:
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<programlisting>
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DROP ACCESS METHOD heptree;
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</programlisting></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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<command>DROP ACCESS METHOD</command> is a
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<productname>PostgreSQL</productname> extension.
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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-create-access-method"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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