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From "Robert Muir (JIRA)" <>
Subject [jira] [Created] (LUCENE-4221) CheckIndex is overeager for term vector offsets bounds checks
Date Sun, 15 Jul 2012 02:33:34 GMT
Robert Muir created LUCENE-4221:

             Summary: CheckIndex is overeager for term vector offsets bounds checks
                 Key: LUCENE-4221
             Project: Lucene - Java
          Issue Type: Bug
    Affects Versions: 4.0-ALPHA
            Reporter: Robert Muir
             Fix For: 4.0, 5.0
         Attachments: LUCENE-4221.patch

In some situations (like running shingles twice), you end out with a case where startOffset
> endOffset.

We prevent this in IndexWriter for postings offsets, but we never do any validation here for
term vectors (at some point, maybe we should make a plan to address this?)

Anyway, currently CheckIndex will wrongly fail in this situation, which some of our own analyzers
even do (e.g. LUCENE-3920)...

This is an overly-eager validation in checkindex (for vectors, we cannot safely do these assertions
as it was/is never enforced by IndexWriter, only for postings offsets).

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