text: -- @testpoint: 调用函数，不加函数名，合理报错
  drop FUNCTION if EXISTS func_add_sql006;
  CREATE FUNCTION func_add_sql006(num1 integer, num2 integer) RETURN integer
  AS
  BEGIN
  RETURN num1 + num2;
  END;
  /
  
  CALL (1, 3);
  drop FUNCTION func_add_sql006;