Can do at leatst once and exactly once?

[wqzcoder]

As we all kone,Flink can do at leatst once and exactly once,however，Yours is easier to use than it is, with a lower threshold。So can apply at leatst once and exactly once?

[yingjunwu]

Thanks for your interest. RisingWave is designed to support exactly-once delivery. We are considering whether to support weaker delivery guarantees. If you prefer a weaker delivery guarantee such as at-least-once or at-most-once, please let us know! Thanks!