[jira] Updated: (LUCENE-730) Restore top level disjunction performance

["Paul Elschot (JIRA)" <ji...@apache.org>]

     [ http://issues.apache.org/jira/browse/LUCENE-730?page=all ]

Paul Elschot updated LUCENE-730:
--------------------------------

    Attachment: TopLevelDisjunction20061127.patch

This patches BooleanScorer2 to use BooleanScorer in the score(HitCollector) method.
This also patches BooleanScorer to accept a minimum number of optional matchers.

The patch also disables some test code: the use of checkSkipTo in QueryUtils
caused a test failure in TestBoolean2 with the above changes. I think this
could be expected because of the changed document scoring order
for top level disjunction queries.
At the moment I don't know how to resolve this.

With the complete patch, all tests pass here.


> Restore top level disjunction performance
> -----------------------------------------
>
>                 Key: LUCENE-730
>                 URL: http://issues.apache.org/jira/browse/LUCENE-730
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>            Reporter: Paul Elschot
>            Priority: Minor
>         Attachments: TopLevelDisjunction20061127.patch
>
>
> This patch restores the performance of top level disjunctions. 
> The introduction of BooleanScorer2 had impacted this as reported
> on java-user on 21 Nov 2006 by Stanislav Jordanov.

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