SQL是开发人员与数据分析师必备的技能,Flink也提供了Sql方式编写任务,能够很大程度降低开发运维成本,这篇是flink join的终极篇SQL Join, 首先介绍sql join使用方式、然后介绍...[Row, JTuple2[Long, Long]],
otherSideState: MapState[Row, JTuple2[Long, Long]],
isLeft:...otherSideCntAndExpiredTime.f0)
callJoinFunction(inputRow, isLeft, otherSideRow, cRowWrapper)
// clear...Note: clear after join to keep closer to the original semantics
if (stateCleaningEnabled && curProcessTime...>= otherSideCntAndExpiredTime.f1) {
otherSideIterator.remove()
}
}
}
两个MapState