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https://issues.apache.org/jira/browse/PHOENIX-4237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shehzaad Nakhoda updated PHOENIX-4237:
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Attachment: PHOENIX-4237_v3.patch
A new patch that removes the external com.salesforce and com.ibm code files in
favor of maven dependencies.
> Allow sorting on (Java) collation keys for non-English locales
> --------------------------------------------------------------
>
> Key: PHOENIX-4237
> URL: https://issues.apache.org/jira/browse/PHOENIX-4237
> Project: Phoenix
> Issue Type: Improvement
> Reporter: Shehzaad Nakhoda
> Assignee: Shehzaad Nakhoda
> Priority: Major
> Fix For: 4.12.0
>
> Attachments: PHOENIX-4237_v1.patch, PHOENIX-4237_v2.patch,
> PHOENIX-4237_v3.patch
>
>
> Strings stored via Phoenix can be composed from a subset of the entire set of
> Unicode characters. The natural sort order for strings for different
> languages often differs from the order dictated by the binary representation
> of the characters of these strings. Java provides the idea of a Collator
> which given an input string and a (language) locale can generate a Collation
> Key which can then be used to compare strings in that natural order.
> Salesforce has recently open-sourced grammaticus. IBM has open-sourced ICU4J
> some time ago. These technologies can be combined to provide a robust new
> Phoenix function that can be used in an ORDER BY clause to sort strings
> according to the user's locale.
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