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https://issues.apache.org/jira/browse/LUCENE-5545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-5545:
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Attachment: LUCENE-5545.patch
Another iteration, with explain() implemented.
It's nice because explain() includes the values of each of the bindings ... so
you can see the values that led to the overall expression.
Still nocommits for better tests ...
> Add ExpressionRescorer
> ----------------------
>
> Key: LUCENE-5545
> URL: https://issues.apache.org/jira/browse/LUCENE-5545
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 4.8, 5.0
>
> Attachments: LUCENE-5545.patch, LUCENE-5545.patch
>
>
> In LUCENE-5489 we added QueryRescorer, to rescore first-pass hits using
> scores from a (usually) more expensive second-pass query.
> I think we should also add ExpressionRescorer, to compute the second pass
> score using an arbitrary JS expression.
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