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From "Yonik Seeley" <>
Subject Re: GData, updateable IndexSearcher
Date Thu, 27 Apr 2006 18:29:40 GMT
On 4/27/06, Robert Engels <> wrote:
> I thought each segment maintained its own list of deleted documents


> (since segments are WRITE ONCE

Yes, but deletions are the exception to that rule.  Once written,
segment files never change, except for the file that tracks deleted
documents for that segment.

Hence, if the segment name is the same, you should be able to count on
everything being unchanged *except* for which documents are deleted.

-Yonik Solr, the open-source Lucene search server

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