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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/06/29 15:27:05 UTC

[jira] [Created] (LUCENE-6633) Remove DuplicateFilter

Adrien Grand created LUCENE-6633:
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             Summary: Remove DuplicateFilter
                 Key: LUCENE-6633
                 URL: https://issues.apache.org/jira/browse/LUCENE-6633
             Project: Lucene - Core
          Issue Type: Task
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor
             Fix For: 5.3


DuplicateFilter is a filter which aims at only exposing a single document per unique field value. It has some flaws, for instance it only works if you have a single leaf and we now have a better way to handle this use-case with DiversifiedTopDocsCollector. So I suggest that we just remove it and recommend users to use DiversifiedTopDocsCollector instead.



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