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https://issues.apache.org/jira/browse/LUCENE-7562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand updated LUCENE-7562:
---------------------------------
    Fix Version/s: 5.5.4

> CompletionFieldsConsumer throws NPE on ghost fields
> ---------------------------------------------------
>
>                 Key: LUCENE-7562
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7562
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: master (7.0), 5.5.4, 6.4
>
>         Attachments: LUCENE-7562.patch
>
>
> If you index {{SuggestField}} for some field X, but later delete all 
> documents with that field, it can cause a ghost situation where the field 
> infos believes field X exists yet the postings do not.
> I believe this bug is the root cause of this ES issue: 
> https://github.com/elastic/elasticsearch/issues/21500



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