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https://issues.apache.org/jira/browse/LUCENE-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593819#action_12593819
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Steven Rowe commented on LUCENE-1279:
-------------------------------------
RangeFilter should also take in a Locale, to perform the same sort of
comparisons.
QueryParser already takes in a Locale, though it was originally intended to be
used for date comparisons. It could forward this Locale, through
ConstantScoreRangeQuery, to RangeFilter.
> RangeQuery and RangeFilter should use collation to check for range inclusion
> ----------------------------------------------------------------------------
>
> Key: LUCENE-1279
> URL: https://issues.apache.org/jira/browse/LUCENE-1279
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 2.3.1
> Reporter: Steven Rowe
> Priority: Minor
> Fix For: 2.4
>
>
> See [this java-user
> discussion|http://www.nabble.com/lucene-farsi-problem-td16977096.html] of
> problems caused by Unicode code-point comparison, instead of collation, in
> RangeQuery.
> RangeQuery could take in a Locale via a setter, which could be used with a
> java.text.Collator and/or CollationKey's, to handle ranges for languages
> which have alphabet orderings different from those in Unicode.
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