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<td class="page-title-pattern-first-line " style="padding: 0; 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-11005" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-9c3d9e51-abce-4d5b-b830-ac77fea08832" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11005" style="color: #3b73af; text-decoration: none">HHH-11005</a> </td>
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<td style="vertical-align: top;; padding: 0; 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-11005" style="color: #3b73af; text-decoration: none">OneToMany generated incorrect SQL where MapKey is on superclass and using InheritanceType.JOINED</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="crancran" id="email_crancran" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=crancran" style="color:#6c797f;; color: #3b73af; text-decoration: none">Chris Cranford</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">We have an entity class Product with InheritanceType.JOINED. This has a field inventoryCode.<br>We have an entity subclass Book extends Product. <br><br>We have an entity class Library. There is a OneToMany from Library to Book: <br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code}</span> <span class="diffcontext"><br> @OneToMany(mappedBy="library")<br> @MapKey(name="inventoryCode")<br> private Map<String,Book> booksOnInventory = new HashMap<String,Book>();<br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code}</span> <span class="diffcontext"><br>and a back-link from Book to Library<br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code}</span> <span class="diffcontext"><br> @ManyToOne<br> private Library library;<br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{code}</span> <span class="diffcontext"><br>Operations trying to access this Map at runtime (Map.size(), entrySet(), etc) fall over with an SQLGrammarException because MapBinder is trying to look for the column inventoryCode on the table for Book rather than on the joined table for the superclass (example stack trace below). As might be imagined, this only happens for the JOINED inheritance type.<br><br>I have a test case which I will attach shortly. <br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{quote}</span> <span class="diffcontext"><br>ERROR: Unknown column 'booksoninv0_.INVCODE' in 'field list'<br>org.hibernate.exception.SQLGrammarException: could not extract ResultSet<br> at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63)<br> at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)<br> at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)<br> at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)<br> at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79)<br> at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.getResultSet(AbstractLoadPlanBasedLoader.java:434)<br> at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:186)<br> at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:121)<br> at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)<br> at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87)<br> at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:682)<br> at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:75)<br> at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2142)<br> at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:567)<br> at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:249)<br> at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:563)<br></span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;"><br></span> <span class="diffaddedchars" style="background-color:#ddfade;">{quote}</span> </td>
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