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From "Doron Cohen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1019) CustomScoreQuery should support multiple ValueSourceQueries
Date Thu, 06 Dec 2007 12:27:43 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549016
] 

Doron Cohen commented on LUCENE-1019:
-------------------------------------

When working on this I hoped that Solr would move to
use it, but by SOLR-192 it never happen. If someone in
Solr is committed to do this I will definitely work on it
(hoping there's nothing with the ne functionality in Solr
that breaks with our changes so far). I will ask in Solr.

> CustomScoreQuery should support multiple ValueSourceQueries
> -----------------------------------------------------------
>
>                 Key: LUCENE-1019
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1019
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>    Affects Versions: 2.2
>            Reporter: Kyle Maxwell
>            Assignee: Doron Cohen
>            Priority: Minor
>             Fix For: 2.3
>
>         Attachments: CustomMultiQuery.v0.diff, CustomScoreQuery.v1.diff, lucene-1019-multi-vsq.patch
>
>
> CustomScoreQuery's constructor currently accepts a subQuery, and a ValueSourceQuery.
 I would like it to accept multiple ValueSourceQueries.  The workaround of nested CustomScoreQueries
works for simple cases, but it quickly becomes either cumbersome to manage, or impossible
to implement the desired function.
> This patch implements CustomMultiScoreQuery with my desired functionality, and refactors
CustomScoreQuery to implement the special case of a CustomMultiScoreQuery with 0 or 1 ValueSourceQueries.
 This keeps the CustomScoreQuery API intact.
> This patch includes basic tests, more or less taken from the original implementation,
and customized a bit to cover the new cases.

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