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https://issues.apache.org/jira/browse/LUCENE-3854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223337#comment-13223337
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Uwe Schindler commented on LUCENE-3854:
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In my opinion Document for *indexing* should be different from document
*retrieved from stored fields" (I am argueing all the time about that).
One simple solution:
When a field is loaded using StoredFieldsVisitor from index, lets set an
internal flag in the document/field instances (e.g. by a pkg-private ctor of
Document), so when you try to readd such a loaded document to IndexWriter you
get an exception. Very simple and is a good solution for now.
But I agree with Robert, Document/Field API is messy and trappy in that regard.
> Non-tokenized fields become tokenized when a document is deleted and added
> back
> -------------------------------------------------------------------------------
>
> Key: LUCENE-3854
> URL: https://issues.apache.org/jira/browse/LUCENE-3854
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/index
> Affects Versions: 4.0
> Reporter: Benson Margulies
>
> https://github.com/bimargulies/lucene-4-update-case is a JUnit test case that
> seems to show a problem with the current trunk. It creates a document with a
> Field typed as StringField.TYPE_STORED and a value with a "-" in it. A
> TermQuery can find the value, initially, since the field is not tokenized.
> Then, the case reads the Document back out through a reader. In the copy of
> the Document that gets read out, the Field now has the tokenized bit turned
> on.
> Next, the case deletes and adds the Document. The 'tokenized' bit is
> respected, so now the field gets tokenized, and the result is that the query
> on the term with the - in it no longer works.
> So I think that the defect here is in the code that reconstructs the Document
> when read from the index, and which turns on the tokenized bit.
> I have an ICLA on file so you can take this code from github, but if you
> prefer I can also attach it here.
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