Unverified50% confidenceOpinionExact time
Two-stack sliding window aggregation deals with the structural expiration problem of "the most recent N elements" and guarantees exact results, but it does not solve the problem of estimating quantiles in an extremely large window while saving memory; the two are often used together.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
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