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https://issues.apache.org/jira/browse/LUCENE-6310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-6310:
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Attachment: LUCENE-6310.patch
simple patch.
* FilteredQuery.LeapFrog uses ConjunctionDISI and works with approximations.
* FilteredQuery.QueryFirst returns the query as the approximation.
* CustomScoreQuery and a few other oddball scorers pass thru approximation
support where they did not before.
I think this is ok default behavior, given how FilterScorer is typically used.
> FilterScorer should delegate asTwoPhaseIterator
> -----------------------------------------------
>
> Key: LUCENE-6310
> URL: https://issues.apache.org/jira/browse/LUCENE-6310
> Project: Lucene - Core
> Issue Type: Task
> Reporter: Robert Muir
> Attachments: LUCENE-6310.patch
>
>
> FilterScorer is like FilterInputStream for a scorer. But today it doesn't
> delegate approximations, I think it should. Most things using this api are
> just modifying the score and so on.
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