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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-11977" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-cdeb2ffe-f6a3-445c-8ef2-6d06faeba8e1" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11977" style="color: #3b73af; text-decoration: none">HHH-11977</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-11977" style="color: #3b73af; text-decoration: none">Wrong parameter binding when joining in a key that is not the @id/PK</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-cdeb2ffe-f6a3-445c-8ef2-6d06faeba8e1" 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"> 5.2.10 </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"> JoinOnUniqueNotPk.zip </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"> 08/Sep/2017 04:55 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-major-aa50fbc1-e996-49a2-9231-4fc9a53449a3" 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: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="gustavofarias" id="email_gustavofarias" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=gustavofarias" style="color:#6c797f;; color: #3b73af; text-decoration: none">gustavofarias</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">The problem happens when you have an entity (B) that has a FK/@JoinColumn that points to a unique key of another entity (A) and this unique key is not the PK/@id of A.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">when I run this:</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">
<span class="code-keyword" style="color: #000091">select</span> b <span class="code-keyword" style="color: #000091">from</span> B b <span class="code-keyword" style="color: #000091">join</span> b.<span class="code-keyword" style="color: #000091">a</span> <span class="code-keyword" style="color: #000091">a</span> <span class="code-keyword" style="color: #000091">where</span> <span class="code-keyword" style="color: #000091">a</span> = :<span class="code-keyword" style="color: #000091">a</span>
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Hibernate generates the correct SQL:</p>
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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">
<span class="code-keyword" style="color: #000091">select</span>
b0_.uniqueKey_a <span class="code-keyword" style="color: #000091">as</span> uniqueKe1_1_
<span class="code-keyword" style="color: #000091">from</span>
B b0_
<span class="code-keyword" style="color: #000091">inner</span> <span class="code-keyword" style="color: #000091">join</span>
<span class="code-keyword" style="color: #000091">A</span> a1_
<span class="code-keyword" style="color: #000091">on</span> b0_.uniqueKey_a=a1_.uniqueKey // correct
<span class="code-keyword" style="color: #000091">where</span>
a1_.primaryKey=? // wrong binding (should be primaryKey <span class="code-keyword" style="color: #000091">of</span> argument)
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Notice that the join is correctly made on the unique key, not the @id key. The error is in the binding. Instead of binding the id of the argument to the id column, it binds the unique key value of the argument to the id column.</p>
<div class="preformatted 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">
<div class="preformattedContent panelContent" style="padding: 9px 12px">
<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap">2017-09-06 13:05:09 TRACE BasicBinder:65 - binding parameter [1] as [INTEGER] - [9]
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Check the test case, it's very simple and you will understand what I'm trying to say here. The line above will only make sense if you look at the example.</p> </td>
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