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https://issues.apache.org/jira/browse/SOLR-2207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928902#action_12928902
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Yonik Seeley commented on SOLR-2207:
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OK, I just checked in a patch for this. I'll add a test later.
> Add paging capabilities to Result Grouping functionality
> --------------------------------------------------------
>
> Key: SOLR-2207
> URL: https://issues.apache.org/jira/browse/SOLR-2207
> Project: Solr
> Issue Type: Improvement
> Reporter: Grant Ingersoll
> Assignee: Yonik Seeley
> Priority: Minor
> Fix For: 4.0
>
> Attachments: SOLR-2207.patch
>
>
> Would be great to have the following:
> # Paging of docs within a group via start and offset parameters such that one
> can drill down into a group
> # While I know we can't return a total count of all groups, it would be nice
> to know if there are more groups. This could simply be done by asking for 1
> more group than requested by the user. If that group is non-empty, then set
> a flag indicating there are more groups. Then, start and offset could also
> be applied to allow paging down the groups. We should also think about how
> we can optimize this so that we can page very deep into the results without
> needing to increase the PQ size.
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