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https://issues.apache.org/jira/browse/SOLR-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13695162#comment-13695162
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Bryan Bende commented on SOLR-2072:
-----------------------------------
According to that documentation "sort=popularity desc will cause the groups to
be sorted according to the highest popularity doc in each group".
What I want to do is something like "sort=popularity asc, group.field=label,
group.sort=popularity desc, group.limit=1" so essentially the most popular
document in each group, but in least popular order across the groups. This
works when running a single non-distributed instance of Solr, but when starting
Solr with numShards >= 1 it behaves differently.
I wrote up a description of the problem on the mailing list, but no one
provided any feedback:
http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201306.mbox/%3CCALo_M18WVoLKvepJMu0wXk_x2H8cv3UaX9RQYtEh4-mksQHLBA%40mail.gmail.com%3E
> Search Grouping: expand group sort options
> ------------------------------------------
>
> Key: SOLR-2072
> URL: https://issues.apache.org/jira/browse/SOLR-2072
> Project: Solr
> Issue Type: Sub-task
> Reporter: Yonik Seeley
> Attachments: SOLR-2072-01.patch
>
>
> Ability to specify functions over group documents when sorting groups.
> max(score) or avg(popularity), etc.
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