<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >pg_matviews</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.6.19 Documentation" HREF="index.html"><LINK REL="UP" TITLE="System Catalogs" HREF="catalogs.html"><LINK REL="PREVIOUS" TITLE="pg_locks" HREF="view-pg-locks.html"><LINK REL="NEXT" TITLE="pg_policies" HREF="view-pg-policies.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2020-09-02T07:27:19"></HEAD ><BODY CLASS="SECT1" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="4" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.6.19 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="pg_locks" HREF="view-pg-locks.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="catalogs.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Chapter 50. System Catalogs</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="pg_policies" HREF="view-pg-policies.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="VIEW-PG-MATVIEWS" >50.66. <TT CLASS="STRUCTNAME" >pg_matviews</TT ></A ></H1 ><P > The view <TT CLASS="STRUCTNAME" >pg_matviews</TT > provides access to useful information about each materialized view in the database. </P ><DIV CLASS="TABLE" ><A NAME="AEN111945" ></A ><P ><B >Table 50-67. <TT CLASS="STRUCTNAME" >pg_matviews</TT > Columns</B ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><COL><COL><COL><COL><THEAD ><TR ><TH >Name</TH ><TH >Type</TH ><TH >References</TH ><TH >Description</TH ></TR ></THEAD ><TBODY ><TR ><TD ><TT CLASS="STRUCTFIELD" >schemaname</TT ></TD ><TD ><TT CLASS="TYPE" >name</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-namespace.html" ><TT CLASS="STRUCTNAME" >pg_namespace</TT ></A >.nspname</TT ></TD ><TD >Name of schema containing materialized view</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >matviewname</TT ></TD ><TD ><TT CLASS="TYPE" >name</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-class.html" ><TT CLASS="STRUCTNAME" >pg_class</TT ></A >.relname</TT ></TD ><TD >Name of materialized view</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >matviewowner</TT ></TD ><TD ><TT CLASS="TYPE" >name</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-authid.html" ><TT CLASS="STRUCTNAME" >pg_authid</TT ></A >.rolname</TT ></TD ><TD >Name of materialized view's owner</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >tablespace</TT ></TD ><TD ><TT CLASS="TYPE" >name</TT ></TD ><TD ><TT CLASS="LITERAL" ><A HREF="catalog-pg-tablespace.html" ><TT CLASS="STRUCTNAME" >pg_tablespace</TT ></A >.spcname</TT ></TD ><TD >Name of tablespace containing materialized view (null if default for database)</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >hasindexes</TT ></TD ><TD ><TT CLASS="TYPE" >boolean</TT ></TD ><TD > </TD ><TD >True if materialized view has (or recently had) any indexes</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >ispopulated</TT ></TD ><TD ><TT CLASS="TYPE" >boolean</TT ></TD ><TD > </TD ><TD >True if materialized view is currently populated</TD ></TR ><TR ><TD ><TT CLASS="STRUCTFIELD" >definition</TT ></TD ><TD ><TT CLASS="TYPE" >text</TT ></TD ><TD > </TD ><TD >Materialized view definition (a reconstructed <TT CLASS="COMMAND" >SELECT</TT > query)</TD ></TR ></TBODY ></TABLE ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="view-pg-locks.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="view-pg-policies.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><TT CLASS="STRUCTNAME" >pg_locks</TT ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="catalogs.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><TT CLASS="STRUCTNAME" >pg_policies</TT ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >