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Posted to dev@lucene.apache.org by "paul.elschot (JIRA)" <ji...@apache.org> on 2006/09/03 11:27:23 UTC
[jira] Updated: (LUCENE-569) NearSpans skipTo bug
[ http://issues.apache.org/jira/browse/LUCENE-569?page=all ]
paul.elschot updated LUCENE-569:
--------------------------------
Attachment: NearSpans20060903.patch
NearSpans20060903.patch combines the changes for the bug fix on the
following files against revision 439747 (today):
src/java/org/apache/lucene/search/spans/NearSpansOrdered.java, added
src/java/org/apache/lucene/search/spans/NearSpansUnordered.java, added
src/java/org/apache/lucene/search/spans/SpanNearQuery.java, changed
src/test/org/apache/lucene/search/spans/TestNearSpans.java, added
src/java/org/apache/lucene/search/spans/NearSpans.java, deleted.
This obsoletes the patch to SpanNearQuery.java.
(It leaves out one line of commented code that is in the separate patch for SpanNearQuery.java .)
The added NearSpansUnordered is a simple specialisation of the deleted
NearSpans for the unordered case.
Regards,
Paul Elschot
> NearSpans skipTo bug
> --------------------
>
> Key: LUCENE-569
> URL: http://issues.apache.org/jira/browse/LUCENE-569
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Reporter: Hoss Man
> Attachments: common-build.assertions.patch, NearSpans20060903.patch, NearSpansOrdered.java, NearSpansUnordered.java, SpanNearQuery20060622.patch, SpanScorer.explain.testcase.patch, 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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