184 lines
6.5 KiB
Plaintext
184 lines
6.5 KiB
Plaintext
<!--
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doc/src/sgml/ref/alter_materialized_view.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-altermaterializedview">
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<indexterm zone="sql-altermaterializedview">
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<primary>ALTER MATERIALIZED VIEW</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>ALTER 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>ALTER MATERIALIZED VIEW</refname>
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<refpurpose>change the definition of a materialized view</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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ALTER MATERIALIZED VIEW [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
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<replaceable class="parameter">action</replaceable> [, ... ]
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ALTER MATERIALIZED VIEW <replaceable class="parameter">name</replaceable>
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DEPENDS ON EXTENSION <replaceable class="parameter">extension_name</replaceable>
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ALTER MATERIALIZED VIEW [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
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RENAME [ COLUMN ] <replaceable class="parameter">column_name</replaceable> TO <replaceable class="parameter">new_column_name</replaceable>
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ALTER MATERIALIZED VIEW [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
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RENAME TO <replaceable class="parameter">new_name</replaceable>
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ALTER MATERIALIZED VIEW [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
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SET SCHEMA <replaceable class="parameter">new_schema</replaceable>
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ALTER MATERIALIZED VIEW ALL IN TABLESPACE <replaceable class="parameter">name</replaceable> [ OWNED BY <replaceable class="parameter">role_name</replaceable> [, ... ] ]
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SET TABLESPACE <replaceable class="parameter">new_tablespace</replaceable> [ NOWAIT ]
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<phrase>where <replaceable class="parameter">action</replaceable> is one of:</phrase>
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ALTER [ COLUMN ] <replaceable class="parameter">column_name</replaceable> SET STATISTICS <replaceable class="parameter">integer</replaceable>
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ALTER [ COLUMN ] <replaceable class="parameter">column_name</replaceable> SET ( <replaceable class="parameter">attribute_option</replaceable> = <replaceable class="parameter">value</replaceable> [, ... ] )
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ALTER [ COLUMN ] <replaceable class="parameter">column_name</replaceable> RESET ( <replaceable class="parameter">attribute_option</replaceable> [, ... ] )
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ALTER [ COLUMN ] <replaceable class="parameter">column_name</replaceable> SET STORAGE { PLAIN | EXTERNAL | EXTENDED | MAIN }
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CLUSTER ON <replaceable class="parameter">index_name</replaceable>
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SET WITHOUT CLUSTER
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SET ( <replaceable class="parameter">storage_parameter</replaceable> [= <replaceable class="parameter">value</replaceable>] [, ... ] )
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RESET ( <replaceable class="parameter">storage_parameter</replaceable> [, ... ] )
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OWNER TO { <replaceable class="parameter">new_owner</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
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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>ALTER MATERIALIZED VIEW</command> changes various auxiliary
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properties of an existing materialized view.
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</para>
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<para>
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You must own the materialized view to use <command>ALTER MATERIALIZED
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VIEW</command>. To change a materialized view's schema, you must also have
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<literal>CREATE</literal> privilege on the new schema.
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To alter the owner, you must also be a direct or indirect member of the new
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owning role, and that role must have <literal>CREATE</literal> privilege on
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the materialized view's schema. (These restrictions enforce that altering
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the owner doesn't do anything you couldn't do by dropping and recreating the
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materialized view. However, a superuser can alter ownership of any view
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anyway.)
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</para>
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<para>
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The statement subforms and actions available for
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<command>ALTER MATERIALIZED VIEW</command> are a subset of those available
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for <command>ALTER TABLE</command>, and have the same meaning when used for
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materialized views. See the descriptions for
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<link linkend="sql-altertable"><command>ALTER TABLE</command></link>
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for details.
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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><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 an existing materialized view.
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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">column_name</replaceable></term>
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<listitem>
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<para>
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Name of a new or existing column.
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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">extension_name</replaceable></term>
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<listitem>
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<para>
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The name of the extension that the materialized view is to depend on (or no longer
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dependent on, if <literal>NO</literal> is specified). A materialized view
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that's marked as dependent on an extension is automatically dropped when
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the extension is dropped.
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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">new_column_name</replaceable></term>
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<listitem>
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<para>
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New name for an existing column.
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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">new_owner</replaceable></term>
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<listitem>
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<para>
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The user name of the new owner of the materialized view.
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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">new_name</replaceable></term>
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<listitem>
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<para>
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The new name for the materialized view.
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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">new_schema</replaceable></term>
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<listitem>
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<para>
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The new schema for the materialized view.
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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 rename the materialized view <literal>foo</literal> to
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<literal>bar</literal>:
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<programlisting>
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ALTER MATERIALIZED VIEW foo RENAME TO bar;
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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>ALTER 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-dropmaterializedview"/></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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