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Posted to dev@lucene.apache.org by "David Smiley (JIRA)" <ji...@apache.org> on 2017/12/18 17:06:00 UTC

[jira] [Created] (LUCENE-8103) QueryValueSource should use TwoPhaseIterator

David Smiley created LUCENE-8103:
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             Summary: QueryValueSource should use TwoPhaseIterator
                 Key: LUCENE-8103
                 URL: https://issues.apache.org/jira/browse/LUCENE-8103
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/other
            Reporter: David Smiley
            Priority: Minor


QueryValueSource (in "queries" module) is a ValueSource representation of a Query; the score is the value.  It ought to try to use a TwoPhaseIterator from the query if it can be offered. This will prevent possibly expensive advancing beyond documents that we aren't interested in.



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