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https://issues.apache.org/jira/browse/DERBY-3650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Matrigali updated DERBY-3650:
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Attachment: derby-3650-preliminary_2_diff.txt
still not ready for commit, incorporates comments, improved testing, and fixes
left outer join issue also. Also
fixes null pointer bug found by aggregate tests. Will be running set of tests
on this tonight.
> internal multiple references from different rows to a single BLOB/CLOB stream
> leads to various errors when second reference used.
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-3650
> URL: https://issues.apache.org/jira/browse/DERBY-3650
> Project: Derby
> Issue Type: Bug
> Components: Network Client
> Affects Versions: 10.3.3.0, 10.4.1.3
> Environment: Mac OSX 10.4
> JDK 1.5.0_13
> Hibernate EntityManager 3.2.1
> Reporter: Golgoth 14
> Assignee: Mike Matrigali
> Attachments: derby-3650-preliminary_2_diff.txt,
> derby-3650-preliminary_diff.txt, derby-3650_tests_diff.txt,
> Derby3650EmbeddedRepro.java, Derby3650FullClientRepro.java,
> Derby3650FullRepro.java, Derby3650Repro.java, DerbyHibernateTest.zip,
> testdb.zip, traces_on_FormatIdStream_alloc.txt, UnionAll.java
>
>
> Derby + Hibernate JPA 3.2.1 problem on entity with Blob/Clob
> Hi,
> I'm using Derby in Client - Server mode with Hibernate JPA EJB 3.0.
> When a query on an entity containing a Clob and some joins on other entites
> is executed, an exception with the following message is thrown:
> XJ073: The data in this BLOB or CLOB is no longer available. The
> BLOB/CLOB's transaction may be committed, or its connection is closed.
> This problem occurs when the property "hibernate.max_fetch_depth" is greater
> than 0.
> When hibernate.max_fetch_depth=0, the query works.
> If Derby is configured in embedded mode, the query works independently of the
> value of hibernate.max_fetch_depth.
> On the Hibernate's documentation, the advised value of
> hibernate.max_fetch_depth is 3.
> Could you explain me if I made something wrong ?
> Thank you.
> Stephane
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