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https://issues.apache.org/jira/browse/SOLR-2817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126425#comment-13126425
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bronco commented on SOLR-2817:
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Yes I had the same Idea and would subscribe this feature. I had some talks with
the guys from Drupal and they want to extend their search with this feature and
they asked me if I could make a patch for this. Before I want to start I think
it would be good to get in touch with the other developers, so I contacted the
developers of the apache solr php library. As I understand he offers me a
plugin system for additional code parsing. This would be great specially if
yout extend the grouping function. So we have several chances to make the
modules play nce together. Independent from the
group.main.numFound.grouped=true this is still a good idea.
> Search result with grouping activated delivers wrong numFound value and
> breaks pager.
> -------------------------------------------------------------------------------------
>
> Key: SOLR-2817
> URL: https://issues.apache.org/jira/browse/SOLR-2817
> Project: Solr
> Issue Type: Bug
> Affects Versions: 3.4
> Reporter: bronco
> Priority: Blocker
> Labels: grouping, solr
> Fix For: 3.4
>
>
> I use the 3.4 brach of solr for grouping my results, but obviously there is
> something wrong in my eyes. If I activate the grouping functionality I get
> the expected results. In my case for example 4 rows, but the the numFound
> value says it has 26 results.
> This result is used by the Apache Solr Library in Drupal to calculate the
> correct pager on my website. Now I get a search result page with 4 results
> and a confused pager with 3 more steps to not existing search pages.
> I try a lot of things including using a facet and all the other suggested
> things by google but I couldn't change the numFound value to the correct one
> in my case.
> If I not use the group.main=true setting including a facet I get in the facet
> conclusion the correct values of found results but it also say matches 6
> (numFound=6). The Apache Solr Library make it nesessary to use the
> group.main=true setting because without this value the library is not able to
> parse the resultset. So I get always an empty website without any results
> even solr answers correctly.
> Is it somehow possible to change the numFound value to the correct one of the
> group count result. I think nobody groups a field and shows maybe 10 entries
> which belong to the request and tell the user we have 200 other things which
> are not interesting you. But I have to tell you...
> Any help is apreciated to get some understanding why solr delivers me this
> numFound result and how to fix this issue.
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