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https://issues.apache.org/jira/browse/LUCENE-1435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683388#action_12683388
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Michael McCandless commented on LUCENE-1435:
--------------------------------------------

Super, thanks Steven.  I plan to commit soon.

> CollationKeyFilter: convert tokens into CollationKeys encoded using 
> IndexableBinaryStringTools
> ----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-1435
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1435
>             Project: Lucene - Java
>          Issue Type: New Feature
>    Affects Versions: 2.4
>            Reporter: Steven Rowe
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 2.9
>
>         Attachments: LUCENE-1435.patch, LUCENE-1435.patch, LUCENE-1435.patch, 
> LUCENE-1435.patch
>
>
> Converts each token into its CollationKey using the provided collator, and 
> then encodes the CollationKey with IndexableBinaryStringTools, to allow it to 
> be stored as an index term.
> This will allow for efficient range searches and Sorts over fields that need 
> collation for proper ordering.

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