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https://issues.apache.org/jira/browse/LUCENE-8359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16513889#comment-16513889
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Yonik Seeley commented on LUCENE-8359:
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I haven't had a chance to look at the patch, but +1 for the idea of adding the
high level functionality!
> Extend ToParentBlockJoinQuery with 'minimum matched children' functionality
> ----------------------------------------------------------------------------
>
> Key: LUCENE-8359
> URL: https://issues.apache.org/jira/browse/LUCENE-8359
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Andrey Kudryavtsev
> Priority: Minor
> Labels: lucene
> Attachments: LUCENE-8359
>
>
> I have a hierarchal data in index and requirements like 'match parent only if
> at least {{n}} his children were matched'.
> I used to solve it by combination of some lucene / solr tricks like 'frange'
> filtration by sum of matched children score, so it's doable out of the box
> with some efforts right now. But also it could be solved by
> \{{ToParentBlockJoinQuery}} extension with new numeric parameter, tried to do
> it in attached patch.
> Not sure if this should be in main branch, just put it here, maybe someone
> would have similar problems.
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