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https://issues.apache.org/jira/browse/LUCENE-2160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Wang updated LUCENE-2160:
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Attachment: RenameField.java
part of the code was originally posted on nabble, but is not removed:
www.nabble.com/file/p15221929/fieldrename
> Tool to rename a field
> ----------------------
>
> Key: LUCENE-2160
> URL: https://issues.apache.org/jira/browse/LUCENE-2160
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/*
> Affects Versions: 3.0
> Reporter: John Wang
> Attachments: RenameField.java
>
>
> We found it useful to be able to rename a field.
> It can save a lot of reindexing time/cost when being used in conjunction with
> ParallelReader to update partially a field.
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