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https://issues.apache.org/jira/browse/LUCENE-1435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12644780#action_12644780
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Steven Rowe commented on LUCENE-1435:
-------------------------------------
Robert Muir wrote:
bq. One alternative is that the ICU implementation has versioning specifically
for this purpose.
I'll look into using RegexQuery as a model here (it enables use of either
java.util.regex or Jakarta Regexp, defaulting to java.util.regex), and try to
add CollatorCapable/CollatorCapabilities, so that ICU's Collator implementation
will be usable.
> 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
> Priority: Minor
> Fix For: 2.9
>
> Attachments: 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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