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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-9864" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-f0206f62-0d7d-4511-98cf-d71a8fe8d5c2" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9864" style="color: #3b73af; text-decoration: none">HHH-9864</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-9864" style="color: #3b73af; text-decoration: none">foreign key violation with order_inserts=true</a> </span>
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Issue Type:
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Affects Versions:
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5.0.0.CR1, 4.3.10
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Assignee:
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Unassigned
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Attachments:
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jpaorderproblem.zip
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Components:
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hibernate-core
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Created:
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11/Jun/2015 06:56 AM
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Environment:
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Hibernate core 4.3.10 with Oracle 11gR2, Derby 10.11.1.1 , DB2 9.7 <br /> Reproduced with Hibernate core 5.0.0.CR1
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="RME" id="email_RME" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=RME" style="color:#6c797f;; color: #3b73af; text-decoration: none">Rainer Meyer</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Inserts statements are executed in wrong order when hibernate.order_inserts=true is set in the configuration, leading to a foreign key violation. <br /> The problem occurs with a simple derived class with a one-to-many association.<br /> We do huge batch imports and need the order_inserts-parameter for sufficient performance.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Error message with Derby:<br /> java.sql.SQLIntegrityConstraintViolationException: INSERT on table 'ADDRESS' caused a violation of foreign key constraint 'FK_I58AVXHL07TR4<br /> KQ5X1O6LKIUN' for key (-107374182399). The statement has been rolled back.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">A Minimal test case is appended:<br /> Address: simple class<br /> Person class: has a one-to-many-association to Address<br /> SpecialPerson: subclass of person, mapped on same table</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">If we save a Person and a SpecialPerson, each with one address, the error occurs. When order_inserts is set to false, the problem disappears.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Steps to run the test case:</p>
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unzip jpaorderproblem.zip
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cd jpaorderproblem
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mvn test
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Without order_inserts=false, the sql insert order is:<br /> PERSON (Person)<br /> ADDRESS (from Person)<br /> PERSON (SpecialPerson)<br /> ADDRESS (from SpecialPerson)</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Without order_inserts=true, the sql insert order is:<br /> PERSON (Person)<br /> ADDRESS (from Person)<br /> ADDRESS (from SpecialPerson)<br /> PERSON (SpecialPerson)</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The third insert fails, since the containing SpecialPerson isn't inserted yet.<br /> We think the problem is in the org.hibernate.engine.ActionQueue.InsertActionSorter class.<br /> This class reorders the statements and adds the second address insert to the batch list created for the first address, so it is executed<br /> before the SpecialPerson insert. The Sorter does not recognize that there are multiple classes mapped to the same table (Person, SpecialPerson).</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><a href="https://hibernate.atlassian.net/browse/HHH-5454" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://hibernate.atlassian.net/browse/HHH-5454</a> is a similar issue. </p>
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