[ http://issues.apache.org/jira/browse/LUCENE-569?page=all ]
paul.elschot updated LUCENE-569:
--------------------------------
Attachment: NearSpansOrdered.java
NearSpansUnordered.java
These two attachments (NearSpansOrdered and NearSpansUnordered), together with
the near spans patch at the issue indicated above, pass all tests here,
including the patched spans explanation test.
The attachments share the code that defines the ordering of spans.
Some minor refactoring will probably be needed.
> 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: NearSpansOrdered.java, NearSpansUnordered.java,
> 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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