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From "Daniel John Debrunner (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-1478) Add built in language based ordering and like processing to Derby
Date Wed, 07 Feb 2007 18:03:09 GMT

    [ https://issues.apache.org/jira/browse/DERBY-1478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12471050
] 

Daniel John Debrunner commented on DERBY-1478:
----------------------------------------------

Agreed that careful design is needed, but there is nothing special about system columns.

SQL supports schema specific collation, thus in the future Derby could support UNICODE collation
in schema SALES and case insensitive collation in schema ENGINEERING. The different collation
for system schemas is (should be)  just an instance of this (without the ability for the user
to define schema specific collation).

> Add built in language based ordering and like processing to Derby
> -----------------------------------------------------------------
>
>                 Key: DERBY-1478
>                 URL: https://issues.apache.org/jira/browse/DERBY-1478
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.1.2.1
>            Reporter: Kathey Marsden
>         Assigned To: Mamta A. Satoor
>         Attachments: DERBY-1478_FunctionalSpecV1.html
>
>
> It would be good for Derby to have built in Language based ordering based on locale specific
Collator.
> Language based ordering is an important feature for international deployment.  DERBY-533
offers one implementation option for this but according to the discussion in that issue National
Character Types carry a fair amount of baggage with them especially in the form of concerns
about conversion   to and from datetime and number types. Rick  mentioned SQL language for
collations as an option for language based ordering. There may be other options too, but I
thought it worthwhile to add an issue for the high level functional concern, so the best choice
can be made for implementation without assuming that National Character Types is the only
solution.
> For possible 10.1 workaround and examples see:
> http://wiki.apache.org/db-derby/LanguageBasedOrdering

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