[jira] Updated: (LUCENE-850) Easily create queries that transform subquery scores arbitrarily

["Mike Klaas (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mike Klaas updated LUCENE-850:
------------------------------

    Attachment: prodscorer.patch.diff

Generify the subquery handling logic of DisMax to make it easy to build subquery scorers.

This patch is demonstrative only.  There are no tests, and I'm pretty sure the query norm calculation isn't correct in general.

> Easily create queries that transform subquery scores arbitrarily
> ----------------------------------------------------------------
>
>                 Key: LUCENE-850
>                 URL: https://issues.apache.org/jira/browse/LUCENE-850
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Search
>            Reporter: Mike Klaas
>         Attachments: prodscorer.patch.diff
>
>
> Refactor DisMaxQuery into SubQuery(Query|Scorer) that admits easy subclassing.  An example is given for multiplicatively combining scores.
> Note: patch is not clean; for demonstration purposes only.

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