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https://issues.apache.org/jira/browse/LUCENE-4828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13602501#comment-13602501
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Michael McCandless commented on LUCENE-4828:
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bq. For highlighting, I've heard it argued both ways (i.e. prohibited terms can
be important too).
Hmm can you give an example where it's useful to highlight the prohibited terms?
bq. I wasn't thinking about highlighting as much as something like distributed
IDF or other global term statistics. Depending on what type of query is in the
prohibited clause, using global statistics could be important.
But, normally, prohibited clauses don't contribute to scoring so the stats of
terms inside them don't need to be distributed?
> BooleanQuery.extractTerms should not recurse into MUST_NOT clauses
> ------------------------------------------------------------------
>
> Key: LUCENE-4828
> URL: https://issues.apache.org/jira/browse/LUCENE-4828
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.0, 4.3
>
> Attachments: LUCENE-4828.patch
>
>
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