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https://issues.apache.org/jira/browse/LUCENE-7257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15258391#comment-15258391
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Adrien Grand commented on LUCENE-7257:
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Alternatively we could throw an exception if none of the leaves have points for
the given field, but then I was not sure what should happen in the case of an
empty index since it could either be that no documents have ever been indexed
or that they were indexed in the past but then got all deleted.
> PointValues aggregated stats fail if the provided field does not have points
> on one of the leaves
> -------------------------------------------------------------------------------------------------
>
> Key: LUCENE-7257
> URL: https://issues.apache.org/jira/browse/LUCENE-7257
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-7257.patch
>
>
> The static helpers on PointValues to get aggregated
> size/docCount/minPackedValue/maxPackedValue fail if a leaf has points indexed
> (so that getPointValues() returns a non-null value) but not for the given
> field. In that case PointValues.size() throws an exception.
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