Flink1.11 intervalJoin watermark生成,状态清理机制源码理解&Demo分析
参考博客https://cloud.tencent.com/developer/article/1738836数据类型为左流FlinkClick(userid=gk01,click=Pay,ctime=2020-12-1409:55:00.000);右流为FlinkPay(userid=gk01,payway=alipy,ptime=2020-12-1409:58:00.000)join的这段代码