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https://issues.apache.org/jira/browse/LUCENE-6064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14216974#comment-14216974
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Adrien Grand commented on LUCENE-6064:
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+1
> throw exception during sort for misconfigured field
> ---------------------------------------------------
>
> Key: LUCENE-6064
> URL: https://issues.apache.org/jira/browse/LUCENE-6064
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Attachments: LUCENE-6064.patch
>
>
> If you sort on field X, and it has no docvalues, today it will silently treat
> it as "all values missing". This can be very confusing since it just means
> nothing will happen at all.
> But there is a distinction between "no docs happen to have a value for this
> field" and "field isn't configured correctly". The latter should get an
> exception, telling the user to index docvalues, or wrap the reader with
> UninvertingReader.
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