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https://issues.apache.org/jira/browse/SOLR-13823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16961823#comment-16961823
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ASF subversion and git services commented on SOLR-13823:
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Commit 0e3a66be436c3ec2a8d9691f38de99d98f325e2c in lucene-solr's branch
refs/heads/branch_8x from Munendra S N
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=0e3a66b ]
SOLR-13823: fix ClassCastEx in group.query when score is requested
* This makes sures score computed for standalone and distributed
is same for group.query. This is done by using mainQuery to compute
scores
> ClassCastException when using group.query and return score
> ----------------------------------------------------------
>
> Key: SOLR-13823
> URL: https://issues.apache.org/jira/browse/SOLR-13823
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: search
> Affects Versions: 8.2, 8.1.1
> Reporter: Uwe Jäger
> Assignee: Munendra S N
> Priority: Major
> Labels: Grouping
> Attachments: SOLR-13823.patch, SOLR-13823.patch
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> When grouping the results of a query with group.query there is a
> ClassCastException in org.apache.solr.search.Grouping.CommandQuery.finish
> (line 890) since the collector is wrapped in a MultiCollector.
> The wanted topCollector is available in the inner class so it can be used
> directly and the cast is not necessary at all. After that change there are
> still the scores missing in the result, so populating the scores is
> necessary, too.
> I will create a PR showing the error and also containing a fix.
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