INSERT INTO TABLE(set_value) VALUES("w");
 INSERT INTO TABLE(set_value) VALUES("x");
 INSERT INTO TABLE(set_value) VALUES("v");

 INSERT INTO TABLE(return_value) 
 SELECT * FROM TABLE(set_value);

 RETURN return_value;
END FUNCTION;

SELECT collection_test() FROM TABLE(MULTISET{1});
--392: System error - unexpected null pointer encountered.

CREATE PROCEDURE small_test(value a_ty)
RETURNING a_ty;
RETURN value;
END PROCEDURE;
EXECUTE PROCEDURE small_test((SELECT a::a_ty FROM a_ta a WHERE id=1));
--9636: Opaque type exceeded its maximum length.

EXECUTE PROCEDURE a_test(1);
(expression)  LIST{ROW('v2',0          ),ROW('v3',0          ),ROW('v4',0          )} 

SELECT *
FROM   a_ta a
WHERE  EXISTS(SELECT * FROM a_ta b
              WHERE testfunction(a,b)
);
-- 393: A condition in the where clause results in a two-sided outer join.

CREATE TABLE Project
(name           VARCHAR(50));

CREATE TRIGGER testtrigger 
 UPDATE ON testtable
  REFERENCING OLD AS old
  FOR EACH ROW
  WHEN (2<(SELECT * FROM
  TABLE(MULTISET{3})))
 ( INSERT INTO PROJECT(NAME)   
 VALUES(old.name));

> 25582: Network connection is broken.