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From "Alan Woodward (JIRA)" <>
Subject [jira] [Updated] (LUCENE-7736) Expose some IndexReader stats via DoubleValuesSources
Date Thu, 19 Oct 2017 09:16:00 GMT


Alan Woodward updated LUCENE-7736:
    Attachment: LUCENE-7736.patch

Patch including Adrien's suggestions.  This also changes rewrite() to take an IndexSearcher
rather than an IndexReader, which is more useful for a follow-up issue I'll open in a moment.

> Expose some IndexReader stats via DoubleValuesSources
> -----------------------------------------------------
>                 Key: LUCENE-7736
>                 URL:
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Alan Woodward
>            Assignee: Alan Woodward
>            Priority: Minor
>         Attachments: LUCENE-7736.patch, LUCENE-7736.patch, LUCENE-7736.patch, LUCENE-7736.patch,
> We have a number of ValueSource implementations that expose IndexReader stats (numDocs,
termFreq, etc).  We should re-implement these as DoubleValuesSources, allowing them to be
used in FunctionScoreQuery, etc.

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