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From "Andy Laird (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4465) Configurable Collectors
Date Sat, 09 Mar 2013 04:27:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13597840#comment-13597840
] 

Andy Laird commented on SOLR-4465:
----------------------------------

Thanks, David...

Yes, we are actually already using FieldCollapse for other purposes.  In our schema different
groupings of docs -- we call them "stacks" -- share the same value for a field X.  For a given
query we only want one "best result" (the so-called "hero" doc) from a bunch of docs that
score high but have the same value for X.

                
> 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, 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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