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https://issues.apache.org/jira/browse/LUCENE-3893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13233522#comment-13233522
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Michael McCandless commented on LUCENE-3893:
--------------------------------------------

LUCENE-3832 should also be done for this...
                
> TermsFilter should use AutomatonQuery
> -------------------------------------
>
>                 Key: LUCENE-3893
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3893
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>              Labels: gsoc2012, lucene-gsoc-12
>
> I think we could see perf gains if TermsFilter sorted the terms, built a 
> minimal automaton, and used TermsEnum.intersect to visit the terms...
> This idea came up on the dev list recently.

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