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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/OGM" style="color: #3b73af; text-decoration: none">Hibernate OGM</a> / <a href="https://hibernate.atlassian.net/browse/OGM-1235" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-28317a52-41be-4e53-86fd-c3b34f9b61aa" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/OGM-1235" style="color: #3b73af; text-decoration: none">OGM-1235</a> </td>
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<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="davided" id="email_davided" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=davided" style="color:#6c797f;; color: #3b73af; text-decoration: none">Davide D'Alto</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">If the following mapping is used:<br><br>{code}<br>@Entity<br>@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)<br>public abstract class BaseEntity {<br> protected UUID id;<br><br> @Id<br> @GeneratedValue(generator = "uuid")<br> @GenericGenerator(name = "uuid", strategy = "uuid2")<br> public UUID getId() {<br> return id;<br> }<br>...<br>}<br>{code}<br><br>The user sees the following exception:<br><br>{code</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">]</span> <span class="diffaddedchars" style="background-color:#ddfade;">}</span> <span class="diffcontext"><br>Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: -2<br>{code</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">]</span> <span class="diffaddedchars" style="background-color:#ddfade;">}</span> <span class="diffcontext"><br><br>It seems the error is caused by the fact that Hibernate ORM creates an additional table for this mapping containing the ids generated. We should try to solve the issue or improve the error message and update the documentation.</span> </td>
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