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https://issues.apache.org/jira/browse/LUCENE-7580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15805767#comment-15805767
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Paul Elschot commented on LUCENE-7580:
--------------------------------------
SpanSynonymQuery is unusual here because it uses a single SpansDocScorer per
segment, independent of the number of synonym terms.
Since the TermSpans for SynonymSpans are Spans without a SpansDocScorer it
makes some sense not to merge Spans and SpansDocScorer later.
> Spans tree scoring
> ------------------
>
> Key: LUCENE-7580
> URL: https://issues.apache.org/jira/browse/LUCENE-7580
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: master (7.0)
> Reporter: Paul Elschot
> Priority: Minor
> Fix For: 6.x
>
> Attachments: LUCENE-7580.patch, LUCENE-7580.patch, LUCENE-7580.patch,
> LUCENE-7580.patch
>
>
> Recurse the spans tree to compose a score based on the type of subqueries and
> what matched
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