[jira] Commented: (LUCENE-1279) RangeQuery and RangeFilter should use collation to check for range inclusion

["Steven Rowe (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593819#action_12593819 ] 

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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