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From "Jason Rutherglen (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1533) Deleted documents as a Filter or top level Query
Date Sat, 31 Jan 2009 00:30:59 GMT
Deleted documents as a Filter or top level Query
------------------------------------------------

                 Key: LUCENE-1533
                 URL: https://issues.apache.org/jira/browse/LUCENE-1533
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Index
    Affects Versions: 2.4
            Reporter: Jason Rutherglen
            Priority: Minor
             Fix For: 2.9


In exploring alternative and perhaps faster ways to implement the
deleted documents functionality, the idea of filtering the deleted
documents at a higher level came up. This system would save on
checking the deleted docs BitVector of each doc read from the posting
list by SegmentTermDocs. This is equivalent to an AND NOT deleted
docs query.

If the patch improves the speed of indexes with delete documents,
many core unit tests will need to change, or alternatively the
functionality provided by this patch can be an IndexReader option.

I'm thinking the first implementation will be a Filter in
IndexSearcher. 

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