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https://issues.apache.org/jira/browse/SOLR-6234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073137#comment-14073137
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Mikhail Khludnev commented on SOLR-6234:
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[~martijn.v.groningen] [~rcmuir] let me gently remind you about this patch.
As a side note, this ticket allows to reveal LUCENE-5653, wouldn't you mind to
provide scorejoin for Solr users!
> Scoring modes for query time join
> ----------------------------------
>
> Key: SOLR-6234
> URL: https://issues.apache.org/jira/browse/SOLR-6234
> Project: Solr
> Issue Type: New Feature
> Components: query parsers
> Affects Versions: 5.0, 4.10
> Reporter: Mikhail Khludnev
> Attachments: lucene-join-solr-query-parser-0.0.2.zip
>
>
> it adds {{scorejoin}} query parser which calls Lucene's JoinUtil underneath.
> It supports:
> - {{score=none|avg|max|total}} local param (passed as ScoreMode to JoinUtil),
> also
> - supports {{b=100}} param to pass {{Query.setBoost()}}.
> So far
> - it always passes {{multipleValuesPerDocument=true}}
> - it doesn't cover cross core join case, I just can't find the multicore
> testcase in Solr test, I appreciate if you point me on one.
> - I attach standalone plugin project, let me know if somebody interested, I
> convert it into the proper Solr codebase patch. Also please mention the
> blockers!
> Note: the development of this patch was sponsored by an anonymous contributor
> and approved for release under Apache License.
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