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Posted to dev@lucene.apache.org by "Robert Muir (JIRA)" <ji...@apache.org> on 2015/04/03 21:28:52 UTC

[jira] [Created] (LUCENE-6393) SpanFirstQuery sometimes returns Spans without any positions

Robert Muir created LUCENE-6393:
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             Summary: SpanFirstQuery sometimes returns Spans without any positions
                 Key: LUCENE-6393
                 URL: https://issues.apache.org/jira/browse/LUCENE-6393
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Robert Muir


This hits an assert in SpanScorer because it breaks the javadocs contract of Spans.nextStartPosition():
   * Returns the next start position for the current doc.
   * There is always *at least one start/end position* per doc.
   * After the last start/end position at the current doc this returns NO_MORE_POSITIONS.




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