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https://issues.apache.org/jira/browse/SOLR-17736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18051184#comment-18051184
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Alessandro Benedetti commented on SOLR-17736:
---------------------------------------------
Not really David, aside the fact that all latest contributions I supervised/did
actively in the realm of vector search were targeting Solr 10.x so I didn't
backported any.
Do we plan additional 9.x releases?
if anybody wants to backport them, it may be doable, but there's plenty of
stuff that only went to 10.x, so it will take some time.
> Introduce support for KNN search on nested vector documents
> -----------------------------------------------------------
>
> Key: SOLR-17736
> URL: https://issues.apache.org/jira/browse/SOLR-17736
> Project: Solr
> Issue Type: New Feature
> Components: vector-search
> Affects Versions: 9.8
> Reporter: Alessandro Benedetti
> Assignee: Alessandro Benedetti
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.1
>
> Attachments: SOLR-17736.patch
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> This issue tracks the work of introducing the support for KNN search on
> nested vector documents, surfacing the Lucene implementation in here:
> https://github.com/apache/lucene/pull/12434
> This allows both:
> -KNN retrieval of children, applying parent filters with no denormalisation
> needed
> -KNN retrieval of parents (based on children KNN, children level prefiltering
> and parent level prefiltering)
> It's one way of having multi-valued vectors per field, per document in Solr.
> More will come soon
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