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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-11219" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-a95af00f-cb7e-476f-a3eb-4618f07ec565" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11219" style="color: #3b73af; text-decoration: none">HHH-11219</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-11219" style="color: #3b73af; text-decoration: none">Envers generates primary key spanning all columns when generating DDL for @ElementCollection (without primary key)</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">Issue Type:</th>
<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-a95af00f-cb7e-476f-a3eb-4618f07ec565" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </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">Affects Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.2.2 </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"> Unassigned </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"> hibernate-envers </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">Created:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 01/Nov/2016 06:22 AM </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-critical-e045f0ab-62d8-4bd7-a20c-831f9cedbe6b" height="16" width="16" border="0" align="absmiddle" alt="Critical" style="vertical-align: text-bottom"> Critical </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">Reporter:</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="johannes.geiger" id="email_johannes.geiger" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=johannes.geiger" style="color:#6c797f;; color: #3b73af; text-decoration: none">Johannes Geiger</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"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">Consider the following minimal example:</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">import</span> java.io.Serializable;
<span class="code-keyword" style="color: #000091">import</span> java.util.ArrayList;
<span class="code-keyword" style="color: #000091">import</span> java.util.List;
<span class="code-keyword" style="color: #000091">import</span> javax.persistence.ElementCollection;
<span class="code-keyword" style="color: #000091">import</span> javax.persistence.Entity;
<span class="code-keyword" style="color: #000091">import</span> javax.persistence.Id;
<span class="code-keyword" style="color: #000091">import</span> org.hibernate.envers.Audited;
@Entity
@Audited
<span class="code-keyword" style="color: #000091">public</span> class TestEntity <span class="code-keyword" style="color: #000091">implements</span> Serializable {
@Id
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Long</span> id;
@ElementCollection
<span class="code-keyword" style="color: #000091">private</span> List<<span class="code-object" style="color: #910091">String</span>> strings = <span class="code-keyword" style="color: #000091">new</span> ArrayList<>();
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Long</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
<span class="code-keyword" style="color: #000091">public</span> void setId(<span class="code-object" style="color: #910091">Long</span> id) {
<span class="code-keyword" style="color: #000091">this</span>.id = id;
}
<span class="code-keyword" style="color: #000091">public</span> List<<span class="code-object" style="color: #910091">String</span>> getStrings() {
<span class="code-keyword" style="color: #000091">return</span> strings;
}
<span class="code-keyword" style="color: #000091">public</span> void setStrings(List<<span class="code-object" style="color: #910091">String</span>> strings) {
<span class="code-keyword" style="color: #000091">this</span>.strings = strings;
}
}
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">which leads to the following created DDL</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre class="code-sql" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
CREATE TABLE `testentity` (
`id` bigint(20) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `testentity_strings` (
`TestEntity_id` bigint(20) NOT NULL,
`strings` varchar(255) DEFAULT NULL,
KEY `FK6gvnp6uhj6p14qb8jr7w4a4sc` (`TestEntity_id`),
CONSTRAINT `FK6gvnp6uhj6p14qb8jr7w4a4sc` FOREIGN KEY (`TestEntity_id`) REFERENCES `testentity` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `testentity_aud` (
`id` bigint(20) NOT NULL,
`revision` int(11) NOT NULL,
`action` tinyint(4) DEFAULT NULL,
PRIMARY KEY (`id`,`revision`),
KEY `FKtoml4ns3581arnt5f7i1srxai` (`revision`),
CONSTRAINT `FKtoml4ns3581arnt5f7i1srxai` FOREIGN KEY (`revision`) REFERENCES `revinfo` (`REV`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `testentity_strings_aud` (
`revision` int(11) NOT NULL,
`TestEntity_id` bigint(20) NOT NULL,
`strings` varchar(255) NOT NULL,
`action` tinyint(4) DEFAULT NULL,
PRIMARY KEY (`revision`,`TestEntity_id`,`strings`),
CONSTRAINT `FKadlc041c3dxra6fmfxsku0fuh` FOREIGN KEY (`revision`) REFERENCES `revinfo` (`REV`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Now, the problem is the primary key of the last table as Envers decided to include all columns of `testentity_strings` in its audit table primary key which can lead to unexpected problems when one of the columns is e.g. 1024 characters long.</p> </td>
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