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From "Martijn van Groningen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2817) Search result with grouping activated delivers wrong numFound value and breaks pager.
Date Sat, 08 Oct 2011 12:14:29 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123457#comment-13123457
] 

Martijn van Groningen commented on SOLR-2817:
---------------------------------------------

{quote}
Conclusion: I have to talk to the Drupal developers because its a parsing problem of the resultset,
but didn't break that the numFound functionality? I mean it makes the use of the numFound
value in relation with the group.main=true function senseless. You will always get the wrong
number of found results / documents, whatever you try.
{quote}
Well, pagination well never work properly. So that is an issue. On the other hand numFound
represents the number of documents. Maybe we need another http option that explicitly changes
the meaning of numFound to represent the number of groups? Something like:
group.main.numFound.grouped=true 
                
> 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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