Andrey Kudryavtsev created LUCENE-8359:
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Summary: 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
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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