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From "Ryan McKinley (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2671) Add sort missing first/last ability to SortField and ValueComparator
Date Sun, 26 Sep 2010 22:09:33 GMT
Add sort missing first/last ability to SortField and ValueComparator
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                 Key: LUCENE-2671
                 URL: https://issues.apache.org/jira/browse/LUCENE-2671
             Project: Lucene - Java
          Issue Type: New Feature
          Components: Search
            Reporter: Ryan McKinley
            Assignee: Ryan McKinley


When SortField and ValueComparator use EntryCreators (from LUCENE-2649) they use a special
sort value when the field is missing.

This enables lucene to implement 'sort missing last' or 'sort missing first' for numeric values
from the FieldCache.


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