https://blog.wongcw.com/2018/12/16/%e4%b8%8d%e6%83%b3%e9%9b%b2%e5%bb%a0%e5%95%86%e5%9d%90%e6%94%b6%e6%bc%81%e7%bf%81%e4%b9%8b%e5%88%a9kafka-%e5%9c%98%e9%9a%8a%e4%bf%ae%e6%94%b9ksql%e9%96%8b%e6%ba%90%e8%a8%b1%e5%8f%af/