Kim Haase created DERBY-5999:
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             Summary: 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


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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