[ http://issues.apache.org/jira/browse/LUCENE-333?page=all ]
paul.elschot closed LUCENE-333:
-------------------------------
Resolution: Later
Assign To: (was: Lucene Developers)
The only reason this issue is still open is that it contains some code that
might
be useful for implementing disjunctions. I just left a reference there
(performance of
DisjunctionSumScorer), so this can be closed as "later".
> [PATCH] BooleanScorer can score documents in non increasing order
> -----------------------------------------------------------------
>
> Key: LUCENE-333
> URL: http://issues.apache.org/jira/browse/LUCENE-333
> Project: Lucene - Java
> Type: Bug
> Components: Search
> Versions: CVS Nightly - Specify date in submission
> Environment: Operating System: other
> Platform: Other
> Reporter: paul.elschot
> Priority: Minor
> Attachments: BooleanQueryPatch4.txt, BooleanScorer.java, BooleanScorer.java,
> BooleanScorer1.java, BooleanScorer1.java, BooleanScorerPatch1.txt,
> TestBoolean2Patch4.txt
>
> This has been the subject of occasional discussions on lucene-dev
> since quite some time. Doug once called this "arguably a bug"
> so I'm giving a minor severity.
>
> It should be noted that this behaviour of BooleanScorer does not
> cause bugs in the current versions of Lucene.
>
> The main reason I'm entering it now is that it blocks the introduction
> of filters based on other more compact data structures than
> java.util.BitSet (see bug 32965).
>
> An alternative scorer for BooleanQuery is available that always
> scores documents in increasing document order (see bug 31785).
> It might also be possible to improve the current BooleanScorer
> to always score documents in increasing order.
>
> A somewhat related problem is that the current BooleanScorer does
> not implement skipTo().
>
> Regards,
> Paul Elschot
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