<structfield>datctype</structfield> are used instead.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>daticurules</structfield> <type>text</type>
      </para>
      <para>
       ICU collation rules for this database
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>datcollversion</structfield> <type>text</type>
      </para>
      <para>
       Provider-specific version of the collation.  This is recorded when the
       database is created and then checked when it is used, to detect
       changes in the collation definition that could lead to data corruption.
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>datacl</structfield> <type>aclitem[]</type>
      </para>
      <para>
       Access privileges; see <xref linkend="ddl-priv"/> for details
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>
 </sect1>


 <sect1 id="catalog-pg-db-role-setting">
  <title><structname>pg_db_role_setting</structname></title>

  <indexterm zone="catalog-pg-db-role-setting">
   <primary>pg_db_role_setting</primary>
  </indexterm>

  <para>
   The catalog <structname>pg_db_role_setting</structname> records the default
   values that have been set for run-time configuration variables,
   for each role and database combination.
  </para>

  <para>
   Unlike most system catalogs, <structname>pg_db_role_setting</structname>
   is shared across all databases of a cluster: there is only one
   copy of <structname>pg_db_role_setting</structname> per cluster, not
   one per database.
  </para>

  <table>
   <title><structname>pg_db_role_setting</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>setdatabase</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-database"><structname>pg_database</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       The OID of the database the setting is applicable to, or zero if not database-specific
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>setrole</structfield> <type>oid</type>
       (references <link linkend="catalog-pg-authid"><structname>pg_authid</structname></link>.<structfield>oid</structfield>)
      </para>
      <para>
       The OID of the role the setting is applicable to, or zero if not role-specific
      </para></entry>
     </row>

     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       <structfield>setconfig</structfield> <type>text[]</type>
      </para>
      <para>
       Defaults for run-time configuration variables
      </para></entry>
     </row>
    </tbody>
   </tgroup>
  </table>
 </sect1>


 <sect1 id="catalog-pg-default-acl">
  <title><structname>pg_default_acl</structname></title>

  <indexterm zone="catalog-pg-default-acl">
   <primary>pg_default_acl</primary>
  </indexterm>

  <para>
   The catalog <structname>pg_default_acl</structname> stores initial
   privileges to be assigned to newly created objects.
  </para>

  <table>
   <title><structname>pg_default_acl</structname> Columns</title>
   <tgroup cols="1">
    <thead>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">
       Column Type
      </para>
      <para>
       Description
      </para></entry>
     </row>
    </thead>

    <tbody>
     <row>
      <entry role="catalog_table_entry"><para role="column_definition">