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#15995 PR: Fix TopGroupsCollectorManager ignoring withinGroupOffset
1.3 hours ago  1 comments  0 votes  0 watches  gaobinlong, github-actions[bot], javanna
Description When testing the newly introduced TopGroupsCollectorManager in this PR, found that ... In addition, simplify the TopGroupsCollectorManager.reduce() method.
    gaobinlong 1.3 hours ago:  Hi @javanna , could you help to review this PR? Thanks!

#15990 PR: Add experimental columnar indexing api
7.6 hours ago  5 comments  0 votes  0 watches  Tim-Brooks, github-actions[bot], msfroh
This commit adds an experimental columnar indexing api to the IndexWriter. It allows the user to provide Long, Binary, and Vector columns to the indexing chain to ...
    Tim-Brooks 7.6 hours ago:  > IMO, this would make that considerably easier (and ideally more efficient Yes ideally this ... I don't think it would be zero copy as there would still be a copy from format -> Lucene's buffers. But there would ideally be one copy with optimized paths for the dense batches which can be copied ...
    msfroh 12.6 hours ago:  Conceptually, I'm **really** excited about this. Some colleagues and I have been working on ingesting data into Lucene from Apache Arrow format. IMO, this would make that considerably easier (and ideally more efficient -- imagine if the ...

#15565 PR: Introduce AllGroupHeadsCollectorManager
9.5 hours ago  12 comments  0 votes  0 watches  gaobinlong, github-actions[bot], javanna
Description AllGroupHeadsCollectorManager in grouping package did not have until now a ... Relates to https://github.com/apache/lucene/issues/12892.
    javanna 21.4 hours ago:  Thanks for working on this! I am unfamiliar with the grouping module and this collector, but I did a review round anyways. Hope this helps.
    javanna 21.4 hours ago:  do we need to go through the collector to get the sort values? Couldn't we get it directly from the current head?

#15653 PR: Introduce DocValuesStatsCollectorManager
9.5 hours ago  9 comments  0 votes  0 watches  gaobinlong, github-actions[bot], javanna
Description This pr introduces DocValuesStatsCollectorManager and switches TestDocValuesStatsCol ... Relates to https://github.com/apache/lucene/issues/12892.
    github-actions[bot] 9.5 hours ago:  This PR has not had activity in the past 2 weeks, labeling it as stale. If the PR is waiting for review, notify the dev@lucene.apache.org list. Thank you for your contribution!
    javanna 14.9 days ago:  I left some comments and questions, thanks for working on this!

#15991 PR: BooleanQuery: narrow bulk scoring when FILTER matches primary index sort
12.8 hours ago  0 comments  0 votes  0 watches  github-actions[bot], iprithv
# Description Implements 15139 : When a BooleanQuery has a FILTER clause that constrains the ... The optimization currently applies to: - sorted numeric range filters on the primary index sort ... .

#15993 PR: Add maxValueCount to DocValuesSkipper metadata
12.9 hours ago  0 comments  0 votes  0 watches  github-actions[bot], iprithv
# Description resolves https://github.com/apache/lucene/issues/15794 - Add DocValuesSkippermaxV ... . - Persist exact global maxValueCount metadata in Lucene90 doc values skipper metadata for new ...

#13251: Can we add configuration on dropping raw vectors from quantized formats after some period of time?
17.9 hours ago  7 comments  0 votes  0 watches  benwtrent, github-project-automation[bot], jmazanec15, mccullocht, mikemccand, msokolov
Description Tangentially related to: https://github.com/apache/lucene/issues/13158 But, I have ... This is tricky to fully measure and make a promise about lossiness (users can always just start ... But if the data isn't a "bad actor", quantiles and quantization buckets become fairly stable over ...
    mccullocht 17.9 hours ago:  > (Hmm, maybe not -- in the adversarial cases where vectors are very tightly clustered, not ... The comment you linked showed that centering is still valuable -- even after rotation -- so I don't ... In particular centering appears to be much more valuable than rotation at lower bit rates, really ...
    mikemccand 20.2 hours ago:  > * A technique that OSQ doesn't implement but appears in one of the source papers (Intel LVQ) is ... I think it's this paper from Intel? And also implemented in their GitHub project ScalableVectorSearch -- ASL 2 licensed (like Lucene) ...

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