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From "Benson Margulies (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-1999) Match spotter for all query types
Date Sat, 14 Apr 2012 18:29:19 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13254168#comment-13254168
] 

Benson Margulies commented on LUCENE-1999:
------------------------------------------

Robert, Thanks. How do you all handle JIRAs like this? Would it make sense to close it as
obviated by those other things?

                
> Match spotter for all query types
> ---------------------------------
>
>                 Key: LUCENE-1999
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1999
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: core/search
>    Affects Versions: 2.9
>            Reporter: Mark Harwood
>         Attachments: matchflagger.patch
>
>
> Related to LUCENE-1929 and the current inability to highlight NumericRangeQuery, spatial,
cached term filters and other exotica.
> This patch provides the ability to wrap *any* Query objects and record match info as
flags encoded in the overall document score.
> Using this approach it would be possible to understand (and therefore highlight) which
fields matched clauses in a query.
> The match encoding approach loses some precision in scores as noted here: http://tinyurl.com/ykt8nx7
> Avoiding these precision issues would require a change to Lucene core to record docId,
score AND a matchFlag byte in ScoreDoc objects and collector APIs.
> This may be something we should consider.

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