diff --git a/src/test/regress/expected/xml.out b/src/test/regress/expected/xml.out
index 11e7d7faf37..55b65ef324d 100644
--- a/src/test/regress/expected/xml.out
+++ b/src/test/regress/expected/xml.out
@@ -1170,6 +1170,14 @@ SELECT * FROM XMLTABLE(XMLNAMESPACES(DEFAULT 'http://x.y'),
                       PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'
                       COLUMNS a int PATH 'a');
 ERROR:  DEFAULT namespace is not supported
+SELECT * FROM XMLTABLE('.'
+                       PASSING '<foo/>'
+                       COLUMNS a text PATH 'foo/namespace::node()');
+                  a                   
+--------------------------------------
+ http://www.w3.org/XML/1998/namespace
+(1 row)
+
 -- used in prepare statements
 PREPARE pp AS
 SELECT  xmltable.*
diff --git a/src/test/regress/expected/xml_1.out b/src/test/regress/expected/xml_1.out
index d1a03b51a3d..ec6457875ff 100644
--- a/src/test/regress/expected/xml_1.out
+++ b/src/test/regress/expected/xml_1.out
@@ -1048,6 +1048,14 @@ LINE 3:                       PASSING '<rows xmlns="http://x.y"><row...
                                       ^
 DETAIL:  This functionality requires the server to be built with libxml support.
 HINT:  You need to rebuild PostgreSQL using --with-libxml.
+SELECT * FROM XMLTABLE('.'
+                       PASSING '<foo/>'
+                       COLUMNS a text PATH 'foo/namespace::node()');
+ERROR:  unsupported XML feature
+LINE 2:                        PASSING '<foo/>'
+                                       ^
+DETAIL:  This functionality requires the server to be built with libxml support.
+HINT:  You need to rebuild PostgreSQL using --with-libxml.
 -- used in prepare statements
 PREPARE pp AS
 SELECT  xmltable.*
diff --git a/src/test/regress/expected/xml_2.out b/src/test/regress/expected/xml_2.out
index 4d200274691..04842602817 100644
--- a/src/test/regress/expected/xml_2.out
+++ b/src/test/regress/expected/xml_2.out
@@ -1150,6 +1150,14 @@ SELECT * FROM XMLTABLE(XMLNAMESPACES(DEFAULT 'http://x.y'),
                       PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'
                       COLUMNS a int PATH 'a');
 ERROR:  DEFAULT namespace is not supported
+SELECT * FROM XMLTABLE('.'
+                       PASSING '<foo/>'
+                       COLUMNS a text PATH 'foo/namespace::node()');
+                  a                   
+--------------------------------------
+ http://www.w3.org/XML/1998/namespace
+(1 row)
+
 -- used in prepare statements
 PREPARE pp AS
 SELECT  xmltable.*
diff --git a/src/test/regress/sql/xml.sql b/src/test/regress/sql/xml.sql
index 71431d8a556..f3f83c7827d 100644
--- a/src/test/regress/sql/xml.sql
+++ b/src/test/regress/sql/xml.sql
@@ -402,6 +402,10 @@ SELECT * FROM XMLTABLE(XMLNAMESPACES(DEFAULT 'http://x.y'),
                       PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'
                       COLUMNS a int PATH 'a');
 
+SELECT * FROM XMLTABLE('.'
+                       PASSING '<foo/>'
+                       COLUMNS a text PATH 'foo/namespace::node()');
+
 -- used in prepare statements
 PREPARE pp AS
 SELECT  xmltable.*