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<a class="user-hover" rel="brmeyer" id="email_brmeyer" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=brmeyer" style="color:#6c797f;">Brett Meyer</a>
updated <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7816'>HHH-7816</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7816'><strong>DDL opertations will incorrectly commit current transaction on Oracle XA</strong></a>
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<strong style="font-weight:normal;color:#505050;">Change By:</strong>
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<a class="user-hover" rel="brmeyer" id="email_brmeyer" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=brmeyer" style="color:#6c797f;">Brett Meyer</a>
(19/Nov/12 4:54 PM)
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<span class="diffcontext">The XA Oracle driver is not able to manage DDL operations which result in transactions commits in a JTA transaction.<br><br>From [~alessandrolt2]'s email on jboss-support-hibernate:<br><br>{quote}<br>[Customer] is facing HHH-1361/JBPAPP6-1628.<br>This issue seems fixed by HHH-1361, making dropTemporaryTableAfterUse<br>return false to Oracle Dialect. However testing the scenario with<br>hibernate-core-4.1.3 we still can see exceptions like:<br></span>
<span class="diffaddedchars" style="background-color:#ddfade;">{code}</span>
<span class="diffcontext"><br> insert<br> into<br> HT_IAP_PVR_L_RECORDINGS<br> select<br> lpvrrecord0_.RECORDING_ID as RECORDING_ID<br> from<br> IAP_PVR_L_RECORDINGS lpvrrecord0_<br> where<br> lpvrrecord0_.EQUIPMENT_ID='equip'<br>Hibernate:<br> delete<br> from<br> HT_IAP_PVR_L_RECORDINGS<br></span>
<span class="diffaddedchars" style="background-color:#ddfade;">{code}<br></span>
<span class="diffcontext">javax.persistence.PersistenceException:<br>org.hibernate.exception.SQLGrammarException: ORA-00942: table or view<br>does not exist<br> at<br>org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1372)<br><br>Sounds like Hibernate is still trying to delete the HT and commit the<br>DDL in that session (which is not allowed by Oracle Driver), even though<br>the dialect says to not do that. I've also tried a custom dialect,<br>flagging performTemporaryTableDDLInIsolation as true and as false but<br>without success.<br><br>A workaround which works is changing the application to a non-xa<br>datasource, which is not acceptable to customer, they must use XA (the<br>issue only happen when used XA).<br>Another solution is pre-creating the temporary table (since temporary<br>tables are like regular tables to Oracle). I've tested here and it<br>works, but customer said that it is not practicable and safe to<br>production environment.<br><br>So, they are expecting a patch. Attached here there is a test case which<br>reproduces the issue. It is a Eclipse project with dependencies already<br>bundled. Running the jUNIT it will setup a XA datasource using Bitronix<br>and run the test. The unique change should be made in the class<br>"OracleXaDatasourceHelper" to define an appropriated Oracle<br>user/password and URL.<br><br>Please let me know if there is something wrong in the test case that<br>justify the issue. Also, if you see another workaround that can be<br>applied instead of a patch will be welcome too.<br>{quote}</span>
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