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https://issues.apache.org/jira/browse/LUCENE-1721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728098#action_12728098
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Tim Smith commented on LUCENE-1721:
-----------------------------------
reopen() actually doesn't do the trick
the following situation will always result in reopen() returning a different
IndexReader instance (at least in 2.4):
* commit()
* open IndexReader
* delete(docid not in index)
* commit() - creates new segments_N file (even though no files actually changed)
* reopen() IndexReader - returns new instance, because of new segments_N file
> IndexWriter to allow deletion by doc ids
> ----------------------------------------
>
> Key: LUCENE-1721
> URL: https://issues.apache.org/jira/browse/LUCENE-1721
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Shay Banon
>
> It would be great if IndexWriter would allow for deletion by doc ids as well.
> It makes sense for cases where a "query" has been executed beforehand, and
> later, that query needs to be applied in order to delete the matched
> documents.
> More information here:
> http://www.nabble.com/Delete-by-docId-in-IndexWriter-td24239930.html
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