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From "David Smiley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4465) Configurable Collectors
Date Tue, 05 Mar 2013 15:49:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13593505#comment-13593505
] 

David Smiley commented on SOLR-4465:
------------------------------------

I have a need for this too.  I'd like to find out the maximum value of the score and of a
couple separate function queries, and then after use those 3 metrics in a relevancy formula
to sort the results on.  My tentative approach today is to write a custom search component
that will calculate those metrics by executing the search before the QueryComponent, and then
by the time the QC gets it at least the filter queries will already be cached by then.
                
> Configurable Collectors
> -----------------------
>
>                 Key: SOLR-4465
>                 URL: https://issues.apache.org/jira/browse/SOLR-4465
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 4.1
>            Reporter: Joel Bernstein
>             Fix For: 4.2, 5.0
>
>         Attachments: SOLR-4465.patch, SOLR-4465.patch, SOLR-4465.patch, SOLR-4465.patch,
SOLR-4465.patch, SOLR-4465.patch, SOLR-4465.patch, SOLR-4465.patch, SOLR-4465.patch
>
>
> This issue is to add configurable custom collectors to Solr. This expands the design
and work done in issue SOLR-1680 to include:
> 1) CollectorFactory configuration in solconfig.xml
> 2) Http parameters to allow clients to dynamically select a CollectorFactory and construct
a custom Collector.
> 3) Make aspects of QueryComponent pluggable so that the output from distributed search
can conform with custom collectors at the shard level.

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