text: -- @testpoint: 结合日期函数，在DATE增加月份得到新日期
  
  DROP TABLE IF EXISTS test_date08;
  CREATE TABLE test_date08 (name date);
  INSERT INTO test_date08 VALUES (ADD_MONTHS(date '2018-09-18', +1));
  INSERT INTO test_date08 VALUES (ADD_MONTHS(date '2018-09-11', -1));
  SELECT * FROM test_date08;
  DROP TABLE test_date08;
  