[jira] Updated: (DERBY-3978) Clob.truncate(long) in the client driver doesn't update the cached Clob length

["Kristian Waagan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan updated DERBY-3978:
-----------------------------------

    Attachment: derby-3978-1a-regression_tests.diff

Attached patch 1a with a small set of regression tests, one of them demonstrates the bug.
The tests are added to jdbcapi.ClobTest.

I also documented a utility method in the test class.

> Clob.truncate(long) in the client driver doesn't update the cached Clob length
> ------------------------------------------------------------------------------
>
>                 Key: DERBY-3978
>                 URL: https://issues.apache.org/jira/browse/DERBY-3978
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Network Client
>    Affects Versions: 10.3.3.0, 10.4.2.0, 10.5.0.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>         Attachments: derby-3978-1a-regression_tests.diff
>
>
> The client driver caches the Clob length, but doesn't update it when Clob.truncate is called.
> I will attach a few regression tests, where one of them demonstrates the issue. The fix is also very simple; update the cached length.

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