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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
117 lines
2.8 KiB
Plaintext
117 lines
2.8 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_materialized_view.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-dropmaterializedview">
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<indexterm zone="sql-dropmaterializedview">
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<primary>DROP MATERIALIZED VIEW</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>DROP MATERIALIZED VIEW</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 MATERIALIZED VIEW</refname>
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<refpurpose>remove a materialized view</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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DROP MATERIALIZED VIEW [ 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 MATERIALIZED VIEW</command> drops an existing materialized
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view. To execute this command you must be the owner of the materialized
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view.
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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 materialized view does not exist. A notice
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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 (optionally schema-qualified) of the materialized view to
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remove.
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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 materialized view (such as
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other materialized views, or regular views),
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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 materialized view if any objects depend on it. This
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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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This command will remove the materialized view called
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<literal>order_summary</literal>:
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<programlisting>
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DROP MATERIALIZED VIEW order_summary;
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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 MATERIALIZED VIEW</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-creatematerializedview"/></member>
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<member><xref linkend="sql-altermaterializedview"/></member>
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<member><xref linkend="sql-refreshmaterializedview"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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