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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-10713" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-a02a6e72-e907-4b42-8fb7-bc56c92c1726" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10713" style="color: #3b73af; text-decoration: none">HHH-10713</a> </td>
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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-10713" style="color: #3b73af; text-decoration: none">@JoinColumn and @Column mapping to String PK require length to be defined</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: 0px; 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-a02a6e72-e907-4b42-8fb7-bc56c92c1726" 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: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.1.0 </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">Assignee:</th>
<td style="padding: 0px; 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: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> hibernate-core </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: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 28/Apr/2016 01:34 AM </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">Environment:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> SQL Server 2014, not yet verified on Mysql, Oracle, Pgsql </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">Priority:</th>
<td class="has-icon" style="padding: 0px; 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-major-5e3211d3-ca4d-4744-bf54-fab78330fa70" height="16" width="16" border="0" align="absmiddle" alt="Major" style="vertical-align: text-bottom"> Major </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: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="antonio.anzivino" id="email_antonio.anzivino" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=antonio.anzivino" style="color:#6c797f;; color: #3b73af; text-decoration: none">Antonio Anzivino</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">The following happened after our upgrade from 5.0.3 to 5.1.0.Final</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">First, we normally use a double @ManyToOne mapping, e.g. one property maps the entity and the other one only the ID. This because sometimes, on a LAZY association, we want to retrieve only the id of the parent object without having Hibernate fetch the whole object. So we map both properties on the same column.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Given the following @OneToMany mapping</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@ManyToOne(fetch = FetchType.EAGER,
optional = <span class="code-keyword" style="color: #000091">true</span>,
targetEntity = Parent.class)
@JoinColumn(name = <span class="code-quote" style="color: #009100">"PARENT_ID"</span>,
nullable = <span class="code-keyword" style="color: #000091">true</span>,
foreignKey = @ForeignKey(name = <span class="code-quote" style="color: #009100">"CHILD_TO_PARENT"</span>,
value = ConstraintMode.CONSTRAINT) )
<span class="code-keyword" style="color: #000091">private</span> Parent parent;
@Column(name = <span class="code-quote" style="color: #009100">"PARENT_ID"</span>,
<span class="code-comment" style="color: #808080">// length = 2,
</span> nullable = <span class="code-keyword" style="color: #000091">true</span>,
insertable = <span class="code-keyword" style="color: #000091">false</span>,
updatable = <span class="code-keyword" style="color: #000091">false</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-keyword" style="color: #000091">final</span> <span class="code-object" style="color: #910091">String</span> parentId = <span class="code-keyword" style="color: #000091">null</span>;
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In version 5.0.3 the SchemaCreate would automagically guess that the length of Parent's PK column is 2 and generate a column of length 2</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">So I get a SQL create statement like</p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
CREATE TABLE CHILD (....., PARENT_ID VARCHAR(2).....);
ALTER TABLE CHILD ADD CONSTRAINT....
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Works good.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">After upgrade to Hibernate 5.1.0.Final the PARENT_ID column is generated VARCHAR(255) so the ADD CONSTRAINT statement will fail. I need to <b>explicitly</b> (this is why I commented out the length attribute in @Column annotation in my code) set the length to each and every @Column.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Withut setting the length of every FK column, I get an error executing the ADD CONSTRAINT statement.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">If someone has an idea about where to look in the Hibernate code I could take that look personally and hopefully make a PR.</p> </td>
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