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https://issues.apache.org/jira/browse/LUCENE-5499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-5499.
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Resolution: Fixed
I can't find exactly when, but this has been fixed: TopFieldCollector now
early-terminates if the search sort is a prefix of the index sort.
> EarlyTerminatingSortingCollector shouldnt require exact Sort match
> ------------------------------------------------------------------
>
> Key: LUCENE-5499
> URL: https://issues.apache.org/jira/browse/LUCENE-5499
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Priority: Major
>
> Today EarlyTerminatingSortingCollector requires that the Sort match exactly
> at query and at index time.
> However, now that you can use any Sort (e.g. with multiple sortfields), this
> should be improved.
> For example, early termination is fine in the following case:
> * index-time: popularity desc, time desc
> * query-time: popularity desc
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