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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4827) Modify the documentation for the 10.7 release regarding the UTF-8 CCSID manager
Date Fri, 01 Oct 2010 16:35:33 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916941#action_12916941
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Kim Haase commented on DERBY-4827:
----------------------------------

Thanks so much, Tiago, that's very helpful.

I can fix http://db.apache.org/derby/docs/dev/adminguide/cadminappsclient.html. However, that
is the only topic in the doc set that mentions EBCDIC explicitly. So if, for example, any
of the database attribute topics in the reference manual need fixing, it would be helpful
to know that. Currently there is no mention of any character length limit for these.

> Modify the documentation for the 10.7 release regarding the UTF-8 CCSID manager
> -------------------------------------------------------------------------------
>
>                 Key: DERBY-4827
>                 URL: https://issues.apache.org/jira/browse/DERBY-4827
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.7.0.0
>            Reporter: Tiago R. Espinha
>            Assignee: Kim Haase
>
> With the introduction of UTF-8 support in the client driver (DERBY-728), the documentation
regarding the length of the arguments (RDBNAM, USRID, etc) will become misleading.
> On the list, Kathey has identified [1] one of such spots. Before releasing, we should
try to find any other occurrences and fix them accordingly. Please note that the UTF-8 is
a variable length encoding and as such, since we are maintaining the 255-byte length cap,
the length in characters will now be variable.
> Regular ASCII characters still take 1 byte, Latin and other extended characters take
2 bytes, Chinese characters take 3 bytes and some special characters take 4 bytes. [2]
> [1] - http://old.nabble.com/Database-name-length-tt29691419.html
> [2] - http://www.utf8-chartable.de/

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