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Date: Tue, 14 Apr 2009 08:19:14 -0700 (PDT)
From: "Kristian Waagan (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-3991) Clob.truncate(0) throws exception
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     [ https://issues.apache.org/jira/browse/DERBY-3991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan updated DERBY-3991:
-----------------------------------

       Derby Info: [Release Note Needed]
    Fix Version/s: 10.6.0.0

Thank you, Yun.

I have committed patch 3 to trunk with revision 764800.
I think the release note needs some more work. For instance, do we want to describe two issues in one release note (zero length allowed, and the change of error message), or would it be better with a release note for each issue?

> Clob.truncate(0) throws exception
> ---------------------------------
>
>                 Key: DERBY-3991
>                 URL: https://issues.apache.org/jira/browse/DERBY-3991
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.3.3.1, 10.4.2.1, 10.5.1.0, 10.6.0.0
>            Reporter: Kristian Waagan
>            Assignee: Yun Lee
>            Priority: Minor
>             Fix For: 10.6.0.0
>
>         Attachments: derby-3991-1a-ClobTruncateZeroTest.diff, derby-3991-2a.diff, derby-3991-3.diff, derby-3991-3.releaseNote.html, derby-3991-3.stat
>
>
> Truncating a Clob to zero length is allowed according to the JDBC specification, which says the following about the len argument (in the @throws tag):
> "SQLException - if there is an error accessing the CLOB value or if len is less than 0 "
> Derby throws an exception if zero is passed to truncate.
> A quick inspection of the code suggests that truncating a Clob to the empty string is easy to support.

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