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https://issues.apache.org/jira/browse/LUCENE-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654720#action_12654720
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Luke Nezda commented on LUCENE-1471:
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* Simplified MultiSearcherThread
** Pulled out result merging functionality - was serialized on hq anyway
and made much more similar to parent merge logic (actually so similar it
felt a little dirty)
** Made it a non-static inner class to cut down on parameters, though after
moving merge logic, only saved searchables[] ref.
* Made fields searchables[] and starts[] final - really parent version of these
same fields should probably just be protected final
* Fixed some javadoc typos
* Patch created against 724620 supersedes previous multisearcher.patch - all
tests pass
> Faster MultiSearcher.search merge docs
> ---------------------------------------
>
> Key: LUCENE-1471
> URL: https://issues.apache.org/jira/browse/LUCENE-1471
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 2.4
> Reporter: Jason Rutherglen
> Assignee: Michael McCandless
> Priority: Minor
> Attachments: LUCENE-1471.patch, multisearcher.patch
>
> Original Estimate: 8h
> Remaining Estimate: 8h
>
> MultiSearcher.search places sorted search results from individual searchers
> into a PriorityQueue. This can be made to be more optimal by taking
> advantage of the fact that the results returned are already sorted.
> The proposed solution places the sub-searcher results iterator into a custom
> PriorityQueue that produces the sorted ScoreDocs.
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