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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?atlOrigin=eyJpIjoiZjdjNTBiOWY2Mjc3NGIxY2JlYzNlOTAyYjM3ZTE2MTQiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-13253?atlOrigin=eyJpIjoiZjdjNTBiOWY2Mjc3NGIxY2JlYzNlOTAyYjM3ZTE2MTQiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-ed271816-abcd-4a13-9b48-9e85e1fa4667" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-13253?atlOrigin=eyJpIjoiZjdjNTBiOWY2Mjc3NGIxY2JlYzNlOTAyYjM3ZTE2MTQiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HHH-13253</a> </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="mih_vlad" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_mih_vlad" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%3Af5e8c0d3-3aae-4bb4-a4e1-25463d60d232"> Vlad Mihalcea </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">As per the discussion on https://github.com/spring-projects/spring-boot/issues/15342, Spring's JPA configuration abstraction has a database enum which is meant to indicate a specific database to set up for the persistence provider. Hibernate has an {{org.hibernate.dialect.Database}} enum itself but doesn't allow for direct configuration through it: Instead, we can only specify a {{Dialect}} implementation (which is typically too specific since we don't mean to suggest a specific database version) or a totally custom {{DialectResolver}} implementation.<br><br>Ideally, there would be a "hibernate.dialect.database" configuration property, along the lines of "hibernate.dialect" but accepting a {{Database}} enum name such as "MYSQL" instead of a specific dialect implementation class. Would it be feasible to include this with Hibernate's default dialect resolvers, shortcutting the current algorithm in {{StandardDialectResolver}} with the pre-selected database and only doing runtime detection for the specific dialect version?<br><br>*Update*<br><br>After discussing it internally, we concluded that we should expand the use of {{javax.persistence.database-product-name}} to the {{DialectResolver}} as well. This issue should address this problem.<br><br>Therefore, if we set the {{javax.persistence.database-product-name}} and there is no {{hibernate.dialect}} configuration setting, we can match the {{Database}} Enum using the {{javax.persistence.database-product-name}} configuration value.</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br>Also, we need to add a comprehensive JavaDoc description to the {{Database}} enum where we explain its purpose and the fact that it applies to the auto Dialect resolution mechanism, and Hibernate can accept custom Dialects even if they are not included in the Enum.</span> </td>
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