<entry>currently held locks</entry>
</row>
+ <row>
+ <entry><link linkend="view-pg-matviews"><structname>pg_matviews</structname></link></entry>
+ <entry>materialized views</entry>
+ </row>
+
<row>
<entry><link linkend="view-pg-prepared-statements"><structname>pg_prepared_statements</structname></link></entry>
<entry>prepared statements</entry>
</sect1>
+ <sect1 id="view-pg-matviews">
+ <title><structname>pg_matviews</structname></title>
+
+ <indexterm zone="view-pg-matviews">
+ <primary>pg_matviews</primary>
+ </indexterm>
+
+ <indexterm zone="view-pg-matviews">
+ <primary>materialized views</primary>
+ </indexterm>
+
+ <para>
+ The view <structname>pg_matviews</structname> provides access to
+ useful information about each materialized view in the database.
+ </para>
+
+ <table>
+ <title><structname>pg_matviews</> Columns</title>
+
+ <tgroup cols="4">
+ <thead>
+ <row>
+ <entry>Name</entry>
+ <entry>Type</entry>
+ <entry>References</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry><structfield>schemaname</structfield></entry>
+ <entry><type>name</type></entry>
+ <entry><literal><link linkend="catalog-pg-namespace"><structname>pg_namespace</structname></link>.nspname</literal></entry>
+ <entry>Name of schema containing materialized view</entry>
+ </row>
+ <row>
+ <entry><structfield>matviewname</structfield></entry>
+ <entry><type>name</type></entry>
+ <entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.relname</literal></entry>
+ <entry>Name of materialized view</entry>
+ </row>
+ <row>
+ <entry><structfield>matviewowner</structfield></entry>
+ <entry><type>name</type></entry>
+ <entry><literal><link linkend="catalog-pg-authid"><structname>pg_authid</structname></link>.rolname</literal></entry>
+ <entry>Name of materialized view's owner</entry>
+ </row>
+ <row>
+ <entry><structfield>tablespace</structfield></entry>
+ <entry><type>name</type></entry>
+ <entry><literal><link linkend="catalog-pg-tablespace"><structname>pg_tablespace</structname></link>.spcname</literal></entry>
+ <entry>Name of tablespace containing materialized view (null if default for database)</entry>
+ </row>
+ <row>
+ <entry><structfield>hasindexes</structfield></entry>
+ <entry><type>boolean</type></entry>
+ <entry><literal><link linkend="catalog-pg-class"><structname>pg_class</structname></link>.relhasindex</literal></entry>
+ <entry>True if materialized view has (or recently had) any indexes</entry>
+ </row>
+ <row>
+ <entry><structfield>isscannable</structfield></entry>
+ <entry><type>boolean</type></entry>
+ <entry></entry>
+ <entry>True if materialized view can currently be scanned</entry>
+ </row>
+ <row>
+ <entry><structfield>definition</structfield></entry>
+ <entry><type>text</type></entry>
+ <entry></entry>
+ <entry>Materialized view definition (a reconstructed <command>SELECT</command> query)</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+ </sect1>
+
<sect1 id="view-pg-prepared-statements">
<title><structname>pg_prepared_statements</structname></title>
<para>
The <structname>pg_rules</> view excludes the <literal>ON SELECT</> rules
- of views; those can be seen in <structname>pg_views</>.
+ of views and materialized views; those can be seen in
+ <structname>pg_views</> and <structname>pg_matviews</>.
</para>
</sect1>