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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2564) Integrating grouping module into Solr 4.0
Date Thu, 09 Jun 2011 17:58:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046707#comment-13046707
] 

Yonik Seeley commented on SOLR-2564:
------------------------------------

bq. > Actually, the worst case is twice as slow due to unneeded caching of a simple query.
bq. Sorry, what do you mean here?

The worst case with this patch as a whole (due to the caching by default).
This type of query is twice as slow:
{code}
http://localhost:8983/solr/select?q=*:*&group=true&group.field=single1000_i
{code}

Which led to me wondering about how complex queries must be before the caching is a win.



> Integrating grouping module into Solr 4.0
> -----------------------------------------
>
>                 Key: SOLR-2564
>                 URL: https://issues.apache.org/jira/browse/SOLR-2564
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Martijn van Groningen
>            Assignee: Martijn van Groningen
>             Fix For: 4.0
>
>         Attachments: LUCENE-2564.patch, SOLR-2564.patch, SOLR-2564.patch, SOLR-2564.patch,
SOLR-2564.patch, SOLR-2564.patch
>
>
> Since work on grouping module is going well. I think it is time to wire this up in Solr.
> Besides the current grouping features Solr provides, Solr will then also support second
pass caching and total count based on groups.

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