[jira] Updated: (LUCENE-569) NearSpans skipTo bug

["Hoss Man (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/LUCENE-569?page=all ]

Hoss Man updated LUCENE-569:
----------------------------

    Summary: NearSpans skipTo bug  (was: NearSpans)

fixed title

> NearSpans skipTo bug
> --------------------
>
>          Key: LUCENE-569
>          URL: http://issues.apache.org/jira/browse/LUCENE-569
>      Project: Lucene - Java
>         Type: Bug

>   Components: Search
>     Reporter: Hoss Man
>  Attachments: TestNearSpans.java
>
> NearSpans appears to have a bug in skipTo that causes it to skip over some matching documents completely.  I discovered this bug while investigating problems with SpanWeight.explain, but as far as I can tell the Bug is not specific to Explanations ... it seems like it could potentially result in incorrect matching in some situations where a SpanNearQuery is nested in another query such thatskipTo will be used ... I tried to create a high level test case to exploit the bug when searching, but i could not.  TestCase exploiting the class using NearSpan and SpanScorer will follow...

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