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Michael Sokolov commented on LUCENE-10425: ------------------------------------------ > Thinking through this a bit more, I imagine that this is the reason why you > made this API optional. Once you implement this API, if it is indeed useful, someone starts relying on it. Then you can no longer just go ahead and make a new implementation that doesn't support it (or makes it much slower), at least not without a fight: it's harder to remove something than not to add it in the first place. I don't think the optional idea is real. We need to make a case for this on the merits - if it enables powerful optimizations across a wide range of applications, then so be it, perhaps it's worth the future constraints. I'm not sure though > count aggregation optimization inside one segment in log scenario > ----------------------------------------------------------------- > > Key: LUCENE-10425 > URL: https://issues.apache.org/jira/browse/LUCENE-10425 > Project: Lucene - Core > Issue Type: New Feature > Components: core/search > Reporter: jianping weng > Priority: Major > Time Spent: 4.5h > Remaining Estimate: 0h > > In log scenario, we usually want to know the doc count of documents between > every time intervals. One possible optimized method is to sort the docuemt in > ascend order according to @timestamp field in one segment. then we can use > this pr [https://github.com/apache/lucene/pull/687] to find out the min/max > docId in on time interval. > If there is no other filter query, the doc count of one time interval is (max > docId- min docId +1) > if there is only one another term filter query, we can use this pr > [https://github.com/apache/lucene/pull/688 > |https://github.com/apache/lucene/pull/688]to get the diff value of index, > when we call advance(minId) and advance(maxId), the diff value is also the > doc count of one time interval > -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org