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From "Michael McCandless (JIRA)" <>
Subject [jira] Created: (LUCENE-1623) Back-compat break with non-ascii field names
Date Tue, 28 Apr 2009 20:16:30 GMT
Back-compat break with non-ascii field names

                 Key: LUCENE-1623
             Project: Lucene - Java
          Issue Type: Bug
          Components: Index
    Affects Versions: 2.4.1, 2.4
            Reporter: Michael McCandless
            Assignee: Michael McCandless
             Fix For: 2.9

If a field name contains non-ascii characters in a 2.3.x index, then
on upgrade to 2.4.x unexpected problems are hit.  It's possible to hit
a "read past EOF" IOException; it's also possible to not hit an
exception but get an incorrect field name.

This was caused by LUCENE-510, because the FieldInfos (*.fnm) file is
not properly versioned.

Spinoff from

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