Yes, the red part is **L.window_start = R.window_start AND L.window_end = R.window_end**
> Is this a limitation for "triggered by the watermark of the stream”? No, because in most of the cases, there is no need to output the intermediate/partial join records then send retractions. So, how do you think about the condition syntax **L.window_start = R.window_start AND L.window_end = R.window_end** ? Best, Danny Chan 在 2020年9月23日 +0800 PM12:47，[email protected]，写道： > > L.window_start = R.window_start AND L.window_end = R.window_end
