Hi,
I realized that PG 13 release note still has the following entry:
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
2020-03-20 [4e6209134] pg_dump: Add FOREIGN to ALTER statements, if appropriate
-->
<para>
Add <literal>FOREIGN</literal> to <command>ALTER</command> statements,
if appropriate (Luis Carril)
</para>
<para>
WHAT IS THIS ABOUT?
</para>
</listitem>
</itemizedlist>
IIUC this entry is about that pg_dump adds FOREIGN word to ALTER TABLE
command. Please find the attached patch.
Regards,
--
Masahiko Sawada http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services