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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5999) Improve documentation on index key lengths
Date Wed, 21 Nov 2012 16:50:00 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kim Haase updated DERBY-5999:
-----------------------------

    Attachment: DERBY-5999-2.zip
                DERBY-5999-2.diff

Thanks, Knut, for the feedback!

I discovered a syntax error in the Tuning Guide topic (involving paragraph tags) that for
some reason didn't prevent the generation of correct output. I'm attaching a revised patch
and zip, DERBY-5999-2.diff and DERBY-5999-2.zip. I'll commit the revised patch.
                
> Improve documentation on index key lengths
> ------------------------------------------
>
>                 Key: DERBY-5999
>                 URL: https://issues.apache.org/jira/browse/DERBY-5999
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Documentation
>    Affects Versions: 10.9.1.0
>            Reporter: Kim Haase
>            Assignee: Kim Haase
>            Priority: Minor
>         Attachments: DERBY-5999-2.diff, DERBY-5999-2.zip, DERBY-5999.diff, DERBY-5999.stat,
DERBY-5999.zip
>
>
> DERBY-5881 includes the following suggestion:
> 3. The documentation for sized datatypes like char and varchar should be updated to warn
about indexing limitations (which would most likely be encounterd with such datatypes).
> It probably also makes sense to add this recommendation to the introductory topic on
indexes in the Tuning Guide (http://db.apache.org/derby/docs/dev/tuning/ctunperf10679.html).

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