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https://issues.apache.org/jira/browse/LUCENE-2996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012028#comment-13012028
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Simon Willnauer commented on LUCENE-2996:
-----------------------------------------
Shai, patch looks ok.
shouldn't the test use newIndexWriterConfig(TEST_VERSION_CURRENT, new
MockAnalyzer()) instead of new IndexWriterConfig(...)
> addIndexes(IndexReader) incorrectly applies existing deletes
> ------------------------------------------------------------
>
> Key: LUCENE-2996
> URL: https://issues.apache.org/jira/browse/LUCENE-2996
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Fix For: 3.1.1, 3.2, 4.0
>
> Attachments: LUCENE-2996.patch
>
>
> If you perform these operations:
> # deleteDocuments(Term) for all the new documents
> # addIndexes(IndexReader)
> # commit
> Then addIndexes applies the previous deletes on the incoming indexes as well,
> which is incorrect. If you call addIndexes(Directory) instead, the deletes
> are applied beforehand, as they should. The solution, as Mike indicated here:
> http://osdir.com/ml/general/2011-03/msg20876.html is to add
> *flush(false,true)* to addIndexes(IndexReader).
> I will create a patch with a matching unit test shortly.
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