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Need fill group results for streaming windowing aggregation in case no events #458
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@yl-lisen @chenziliang as we talked, that's a bit urgent issue we need fix. @gangtao fyi |
This is a topic that has been discussed many times:
For 1) means we don't enable this behavior by default. |
Can we make a quick fix asap? I need this quite urgently . |
We don't need order window to fill since we emit in window order already. Setting is a quick / hack way to implement this support. We can think about SQL clause like "EMIT WITH FILL WINDOW" to enable this feature ? |
Use case
When there is no event during specific window, current behavior of Proton can't emit that window. It ends up a bit weird semantic results.
Describe the solution you'd like
Take reference from ClickHouse: https://clickhouse.com/blog/working-with-time-series-data-and-functions-ClickHouse
Describe alternatives you've considered
Additional context
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