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https://issues.apache.org/jira/browse/SOLR-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated SOLR-2396:
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Attachment: SOLR-2396.patch
patch using the Tokenizer factories, the factory returns KeywordTokenizer with
the appropriate AttributeFactory.
> deprecated char[] based collation factories / replace with byte[]-based
> -----------------------------------------------------------------------
>
> Key: SOLR-2396
> URL: https://issues.apache.org/jira/browse/SOLR-2396
> Project: Solr
> Issue Type: Improvement
> Reporter: Robert Muir
> Fix For: 4.0
>
> Attachments: 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 simple solution is to create tokenizer factories which are KeywordTokenizer
> + [ICU]CollationAttributeFactory.
> A better solution would be [ICU]CollationFieldTypes, as this would allow
> locale-sensitive
> range queries, but I found this to be more difficult due to the fact that the
> indexed values
> are byte[] not String...
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