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https://issues.apache.org/jira/browse/SOLR-2817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122520#comment-13122520
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bronco commented on SOLR-2817:
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A little edit:
This is the result without group.main=true. As you can see the numFound value
is correct with 2 and matches say 6.
<lst name="grouped">
<lst name="site">
<int name="matches">6</int>
<arr name="groups">
<lst>
<str name="groupValue">http://www.domain-1.com</str>
<result name="doclist" numFound="2" start="0" maxScore="0.64790744"><doc>
<float name="score">0.64790744</float>
<str name="body">
</str>
without the group.main setting
<result name="response" numFound="6" start="0" maxScore="0.64790744">
<doc><float name="score">0.64790744</float>
<str name="body">
</str>
I hope this makes it more clear.
> Search result with grouping activated delivers wrong numFound values.
> ---------------------------------------------------------------------
>
> 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
>
> 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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