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https://issues.apache.org/jira/browse/LUCENE-6548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14598287#comment-14598287
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ASF subversion and git services commented on LUCENE-6548:
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Commit 1687125 from [~mikemccand] in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1687125 ]
LUCENE-6548: some optimizations to BlockTree's intersect method with very
finite automata
> Optimize BlockTree's Terms.intersect a bit for "very finite" automata
> ---------------------------------------------------------------------
>
> Key: LUCENE-6548
> URL: https://issues.apache.org/jira/browse/LUCENE-6548
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.3, Trunk
>
> Attachments: LUCENE-6548.patch, LUCENE-6548.patch, LUCENE-6548.patch
>
>
> I've been digging into why BlockTree's Terms.intersect impl is slower for a
> "very finite" union-of-terms test over random IDs (LUCENE-3893) and I found a
> few performance improvements that at least for that one use case gets a ~11%
> speedup.
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