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From Øystein Grøvlen (JIRA) <j...@apache.org>
Subject [jira] Resolved: (DERBY-3098) LOB locks are not released after free().
Date Mon, 15 Oct 2007 13:59:50 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Øystein Grøvlen resolved DERBY-3098.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.3.2.0
                   10.3.1.5

Merged patch, derby-3098fix+tests.diff, to 10.3 branch as revision 584791.

> LOB locks are not released after free().
> ----------------------------------------
>
>                 Key: DERBY-3098
>                 URL: https://issues.apache.org/jira/browse/DERBY-3098
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.2.2.0, 10.3.1.4
>         Environment: Any
>            Reporter: Øystein Grøvlen
>            Assignee: Øystein Grøvlen
>             Fix For: 10.3.1.5, 10.3.2.0, 10.4.0.0
>
>         Attachments: derby-3098fix+tests.diff, derby-3098fix.diff
>
>
> When getBlob/getClob is called on the ResultSet, the current row is
> locked if the JDBC driver does not cache the entire LOB value in
> memory.  This is done to prevent the Blob/Clob object from being
> changed.  Until now, this lock has been held to the end of the
> transaction.
> JDBC4 introduced free() methods for the Blob/Clob class.  The locking
> should be changed so that the locks is releases when the Blob/Clob
> object is freed.

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