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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2829) improve termquery "pk lookup" performance
Date Tue, 21 Dec 2010 20:37:01 GMT
improve termquery "pk lookup" performance
-----------------------------------------

                 Key: LUCENE-2829
                 URL: https://issues.apache.org/jira/browse/LUCENE-2829
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Search
            Reporter: Robert Muir


For things that are like primary keys and don't exist in some segments (worst case is primary/unique
key that only exists in 1)
we do wasted seeks.

While LUCENE-2694 tries to solve some of this issue with TermState, I'm concerned we could
every backport that to 3.1 for example.

This is a simpler solution here just to solve this one problem in termquery... we could just
revert it in trunk when we resolve LUCENE-2694,
but I don't think we should leave things as they are in 3.x


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