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https://issues.apache.org/jira/browse/SOLR-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011646#comment-13011646
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Robert Muir commented on SOLR-2396:
-----------------------------------
I'd like to commit this in a few days if no one objects. The existing encoding
is wasteful and I would like to cut solr over to this more efficient one (and
enable locale-sensitive range queries).
We could open future issues for any additional features such as specifying the
icu locale as BCP47, etc, etc. (this just implements the lucene 3.1
functionality more efficiently)
> add [ICU]CollationField
> -----------------------
>
> Key: SOLR-2396
> URL: https://issues.apache.org/jira/browse/SOLR-2396
> Project: Solr
> Issue Type: Improvement
> Reporter: Robert Muir
> Assignee: Robert Muir
> Fix For: 4.0
>
> Attachments: SOLR-2396.patch, SOLR-2396.patch, SOLR-2396.patch,
> SOLR-2396.patch
>
>
> In LUCENE-2551 collation support was changed to use byte[] keys.
> Previously it encoded sort keys with IndexableBinaryString into char[],
> but this is wasteful with regards to RAM and disk when terms can be byte.
> A better solution would be [ICU]CollationFieldTypes, as this would also allow
> locale-sensitive range queries.
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