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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