Joel Bernstein created SOLR-5027:
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             Summary: CollapsingQParserPlugin
                 Key: SOLR-5027
                 URL: https://issues.apache.org/jira/browse/SOLR-5027
             Project: Solr
          Issue Type: New Feature
          Components: search
    Affects Versions: 5.0
            Reporter: Joel Bernstein
            Priority: Minor


The CollapsingQParserPlugin is a PostFilter that performs field collapsing.

This allows field collapsing to be done within the normal search flow.

Initial syntax:

fq=(!collapse field=<field_name>}

All documents in a group will be collapsed to the highest ranking document in 
the group.





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