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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