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https://issues.apache.org/jira/browse/DERBY-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13879789#comment-13879789
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Knut Anders Hatlen commented on DERBY-4805:
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Might be possible to test it portably by using the memory protocol, which
should be unaffected of limitations on the file system.
jdbc:derby://localhost/memory:/a/very/long/pathname/here/...
> Increase the length of the RDBNAM field in the DRDA implementation
> ------------------------------------------------------------------
>
> Key: DERBY-4805
> URL: https://issues.apache.org/jira/browse/DERBY-4805
> Project: Derby
> Issue Type: Improvement
> Components: Network Client, Network Server
> Affects Versions: 10.7.1.1
> Reporter: Tiago R. Espinha
> Assignee: Mamta A. Satoor
> Labels: derby_triage10_9
> Attachments: DERBY4805_patch2_diff.txt, DERBY4805_patch2_stat.txt,
> DERBY_4805_diff_patch1.txt
>
>
> Currently, whenever the client driver is used, there is a limit of 255 bytes
> for the database name. This is defined by the DRDA spec and there has been a
> discussion on the list [1]/[2] as to whether this limit should be raised due
> to the introduction of the new ACR that allows for UTF-8 characters.
> UTF-8 characters can take up to four bytes and this reduces the limit in
> characters dramatically.
> This should be an easy change as there is a codepoint that defines this limit.
> [1] did not work but [2] did
> [1] - http://old.nabble.com/Database-name-length-tt29691419.html
> [2]http://apache-database.10148.n7.nabble.com/Database-name-length-td33182.html
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