diff --git a/src/test/regress/expected/sqljson_queryfuncs.out b/src/test/regress/expected/sqljson_queryfuncs.out
index 003b7fead6f..21e0fc64170 100644
--- a/src/test/regress/expected/sqljson_queryfuncs.out
+++ b/src/test/regress/expected/sqljson_queryfuncs.out
@@ -1222,22 +1222,22 @@ LINE 1: SELECT JSON_QUERY(js, '$'  RETURNING int DEFAULT (SELECT 1) ...
                                                          ^
 DROP TABLE test_jsonb_mutability;
 DROP FUNCTION ret_setint;
-CREATE DOMAIN jsonb_test_domain AS text CHECK (value <> 'foo');
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo'::jsonb_test_domain ON ERROR);
-ERROR:  value for domain jsonb_test_domain violates check constraint "jsonb_test_domain_check"
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo1'::jsonb_test_domain ON ERROR);
+CREATE DOMAIN queryfuncs_test_domain AS text CHECK (value <> 'foo');
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo'::queryfuncs_test_domain ON ERROR);
+ERROR:  value for domain queryfuncs_test_domain violates check constraint "queryfuncs_test_domain_check"
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON ERROR);
  json_value 
 ------------
  foo1
 (1 row)
 
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT '"foo1"'::jsonb::text ON ERROR);
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT '"foo1"'::jsonb::text ON ERROR);
  json_value 
 ------------
  "foo1"
 (1 row)
 
-SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo1'::jsonb_test_domain ON ERROR);
+SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON ERROR);
  json_value 
 ------------
  foo1
@@ -1251,9 +1251,9 @@ ERROR:  can only specify a constant, non-aggregate function, or operator express
 LINE 1: ...CT JSON_QUERY('"a"', '$.a'  RETURNING int DEFAULT (SELECT '"...
                                                              ^
 -- CoerceToDomain
-SELECT JSON_QUERY('"a"', '$.a' RETURNING jsonb_test_domain DEFAULT (select '"1"')::jsonb_test_domain ON ERROR);
+SELECT JSON_QUERY('"a"', '$.a' RETURNING queryfuncs_test_domain DEFAULT (select '"1"')::queryfuncs_test_domain ON ERROR);
 ERROR:  can only specify a constant, non-aggregate function, or operator expression for DEFAULT
-LINE 1: ...('"a"', '$.a' RETURNING jsonb_test_domain DEFAULT (select '"...
+LINE 1: ...', '$.a' RETURNING queryfuncs_test_domain DEFAULT (select '"...
                                                              ^
 -- RelabelType
 SELECT JSON_QUERY('"a"', '$.a'  RETURNING int DEFAULT (SELECT 1)::oid::int ON ERROR);
@@ -1277,7 +1277,7 @@ SELECT JSON_QUERY('"a"', '$.a'  RETURNING someparent DEFAULT (SELECT '(1)')::som
 ERROR:  can only specify a constant, non-aggregate function, or operator expression for DEFAULT
 LINE 1: ..._QUERY('"a"', '$.a'  RETURNING someparent DEFAULT (SELECT '(...
                                                              ^
-DROP DOMAIN jsonb_test_domain;
+DROP DOMAIN queryfuncs_test_domain;
 DROP TABLE someparent, somechild;
 -- Extension: non-constant JSON path
 SELECT JSON_EXISTS(jsonb '{"a": 123}', '$' || '.' || 'a');
diff --git a/src/test/regress/sql/sqljson_queryfuncs.sql b/src/test/regress/sql/sqljson_queryfuncs.sql
index 71e548e6fa3..c46489e2dd7 100644
--- a/src/test/regress/sql/sqljson_queryfuncs.sql
+++ b/src/test/regress/sql/sqljson_queryfuncs.sql
@@ -411,11 +411,11 @@ SELECT JSON_QUERY(js, '$'  RETURNING int DEFAULT (SELECT 1) ON ERROR) FROM test_
 DROP TABLE test_jsonb_mutability;
 DROP FUNCTION ret_setint;
 
-CREATE DOMAIN jsonb_test_domain AS text CHECK (value <> 'foo');
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo'::jsonb_test_domain ON ERROR);
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo1'::jsonb_test_domain ON ERROR);
-SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING jsonb_test_domain DEFAULT '"foo1"'::jsonb::text ON ERROR);
-SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING jsonb_test_domain DEFAULT 'foo1'::jsonb_test_domain ON ERROR);
+CREATE DOMAIN queryfuncs_test_domain AS text CHECK (value <> 'foo');
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo'::queryfuncs_test_domain ON ERROR);
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON ERROR);
+SELECT JSON_VALUE(jsonb '{"d1": "H"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT '"foo1"'::jsonb::text ON ERROR);
+SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING queryfuncs_test_domain DEFAULT 'foo1'::queryfuncs_test_domain ON ERROR);
 
 -- Check the cases where a coercion-related expression is masking an
 -- unsupported expressions
@@ -423,7 +423,7 @@ SELECT JSON_VALUE(jsonb '{"d1": "foo"}', '$.a2' RETURNING jsonb_test_domain DEFA
 -- CoerceViaIO
 SELECT JSON_QUERY('"a"', '$.a'  RETURNING int DEFAULT (SELECT '"1"')::jsonb ON ERROR);
 -- CoerceToDomain
-SELECT JSON_QUERY('"a"', '$.a' RETURNING jsonb_test_domain DEFAULT (select '"1"')::jsonb_test_domain ON ERROR);
+SELECT JSON_QUERY('"a"', '$.a' RETURNING queryfuncs_test_domain DEFAULT (select '"1"')::queryfuncs_test_domain ON ERROR);
 -- RelabelType
 SELECT JSON_QUERY('"a"', '$.a'  RETURNING int DEFAULT (SELECT 1)::oid::int ON ERROR);
 -- ArrayCoerceExpr
@@ -435,7 +435,7 @@ CREATE TABLE someparent (a int);
 CREATE TABLE somechild () INHERITS (someparent);
 SELECT JSON_QUERY('"a"', '$.a'  RETURNING someparent DEFAULT (SELECT '(1)')::somechild::someparent ON ERROR);
 
-DROP DOMAIN jsonb_test_domain;
+DROP DOMAIN queryfuncs_test_domain;
 DROP TABLE someparent, somechild;
 
 -- Extension: non-constant JSON path