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Yonik Seeley commented on SOLR-2564: ------------------------------------ I've been checking out the performance, and it generally seems fine. But of course we normally short circuit based on comparators and often don't get beyond that... so to exercise & isolate the rest of the code, I tried a worst-case scenario where the short circuit wouldn't work (sort=_docid_ desc) and solr trunk with this patch is ~16% slower than without it. Any ideas what the problem might be? {code} http://localhost:8983/solr/select?q=*:*&sort=_docid_ desc&group=true&group.cacheMB=0&group.field=single1000_i {code} Note: the single1000_i field is a single valued int field with 1000 unique values > 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 > > > 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. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org