kettle 只做插入操作不做更新

灵感来源

https://blog.csdn.net/wang12345566/article/details/78856327?utm_term=kettle%E5%AD%98%E5%9C%A8%E5%88%99%E4%B8%8D%E6%9B%B4%E6%96%B0&utm_medium=distribute.pc_aggpage_search_result.none-task-blog-2~all~sobaiduweb~default-0-78856327&spm=3001.4430