commit 12642d9ff66a2661d4f707cb15b0c3de6a9e1d4e
Author:     Alvaro Herrera <alvherre@alvh.no-ip.org>
AuthorDate: Mon Mar 25 22:50:59 2019 -0300
CommitDate: Mon Mar 25 22:51:15 2019 -0300

    fixup

diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index fc404bbaab8..91f2306734e 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -2489,11 +2489,12 @@ describeOneTableDetails(const char *schemaname,
 				printfPQExpBuffer(&buf,
 								  "SELECT conname, conrelid::pg_catalog.regclass AS ontable,\n"
 								  "       pg_catalog.pg_get_constraintdef(oid, true) AS condef\n"
-								  "  FROM pg_catalog.pg_constraint c LEFT JOIN \n"
-								  "       pg_catalog.pg_partition_ancestors(c.confrelid) ON (true)\n"
-								  " WHERE confrelid = '%s' AND contype = 'f' AND conparentid = 0\n"
+								  "  FROM pg_catalog.pg_constraint c\n"
+								  " WHERE confrelid IN (SELECT pg_catalog.pg_partition_ancestors('%s')\n"
+								  "                     UNION ALL VALUES (regclass '%s'))\n"
+								  "       AND contype = 'f' AND conparentid = 0\n"
 								  "ORDER BY conname;",
-								  oid);
+								  oid, oid);
 			}
 			else
 			{