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https://issues.apache.org/jira/browse/LUCENE-1790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Ingersoll updated LUCENE-1790:
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Attachment: LUCENE-1790.patch
Next take on this:
1. Added includeSpanScore flag, which allows you to ignore the score from the
TermQuery part of the score and only count the payload.
2. Deprecated Similarity.scorePayload(String fieldName, ...) to a similar
method that also takes in the Doc id. Now, in theory, you could have different
scoring for payloads based on different documents, fields, etc. The old method
just calls the new one and passes in a NO_DOC_ID_PROVIDED value (-1).
3. Added a Marker Interface named PayloadQuery and marked the various
PayloadQueries. This could be useful for Queries that work with other
PayloadQueries (more exclusive than the fact that they are SpanQueries.
I really do intend to commit this :-)
> Boosting Function Term Query
> ----------------------------
>
> Key: LUCENE-1790
> URL: https://issues.apache.org/jira/browse/LUCENE-1790
> Project: Lucene - Java
> Issue Type: New Feature
> Reporter: Grant Ingersoll
> Assignee: Grant Ingersoll
> Priority: Minor
> Fix For: 2.9
>
> Attachments: LUCENE-1790.patch, LUCENE-1790.patch, LUCENE-1790.patch
>
>
> Similar to the BoostingTermQuery, the BoostingFunctionTermQuery is a
> SpanTermQuery, but the difference is the payload score for a doc is not the
> average of all the payloads, but applies a function to them instead.
> BoostingTermQuery becomes a BoostingFunctionTermQuery with an
> AveragePayloadFunction applied to it.
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