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From "Michael McCandless (Updated) (JIRA)" <>
Subject [jira] [Updated] (LUCENE-1761) low level Field metadata is never removed from index
Date Tue, 20 Mar 2012 15:57:38 GMT


Michael McCandless updated LUCENE-1761:

    Labels: gsoc2012 lucene-gsoc-12  (was: )
> low level Field metadata is never removed from index
> ----------------------------------------------------
>                 Key: LUCENE-1761
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: core/index
>    Affects Versions: 2.2, 2.3, 2.3.1, 2.3.2, 2.4, 2.4.1
>            Reporter: Hoss Man
>            Priority: Minor
>              Labels: gsoc2012, lucene-gsoc-12
>         Attachments: LUCENE-1761.patch
> with heterogeneous docs, or an index whose fields evolve over time, field names that
are no longer used (ie: all docs that ever referenced them have been deleted) still show up
when you use IndexReader.getFieldNames.
> It seems logical that segment merging should only preserve metadata about fields that
actually existing the new segment, but even after deleting all documents from an index and
optimizing the old field names are still present.

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