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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-10932" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-a0a40bed-fe09-41f0-9b8c-921fe2c5a8ac" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10932" style="color: #3b73af; text-decoration: none">HHH-10932</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-10932" style="color: #3b73af; text-decoration: none">Hibernate make same aliases for different joins</a> </span> </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"> 06/Jul/2016 04:45 AM </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="IgorBobko" id="email_IgorBobko" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=IgorBobko" style="color:#6c797f;; color: #3b73af; text-decoration: none">Igor Bobko</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">Suppose, we have 3 entities</p>
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<pre class="code-xml" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-tag" style="color: #000091"><class name=<span class="code-quote" style="color: #009100">"AEntity"</span> table=<span class="code-quote" style="color: #009100">"A"</span> abstract=<span class="code-quote" style="color: #009100">"true"</span>></span>
<span class="code-tag" style="color: #000091"><id name=<span class="code-quote" style="color: #009100">"id"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"ID"</span>/></span>
<span class="code-tag" style="color: #000091"></id></span>
<span class="code-tag" style="color: #000091"><joined-subclass table=<span class="code-quote" style="color: #009100">"Aa"</span> name=<span class="code-quote" style="color: #009100">"AaEntity"</span>></span>
<span class="code-tag" style="color: #000091"><key column=<span class="code-quote" style="color: #009100">"key"</span>/></span>
<span class="code-tag" style="color: #000091"><many-to-one name=<span class="code-quote" style="color: #009100">"b"</span> class=<span class="code-quote" style="color: #009100">"BEntity"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"B_ID"</span>/></span>
<span class="code-tag" style="color: #000091"></many-to-one></span>
<span class="code-tag" style="color: #000091"></joined-subclass></span>
<span class="code-tag" style="color: #000091"><joined-subclass table=<span class="code-quote" style="color: #009100">"Ab"</span> name=<span class="code-quote" style="color: #009100">"AbEntity"</span>></span>
<span class="code-tag" style="color: #000091"><key column=<span class="code-quote" style="color: #009100">"key"</span>/></span>
<span class="code-tag" style="color: #000091"><many-to-one name=<span class="code-quote" style="color: #009100">"b"</span> class=<span class="code-quote" style="color: #009100">"BEntity"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"B_ID"</span>/></span>
<span class="code-tag" style="color: #000091"></many-to-one></span>
<span class="code-tag" style="color: #000091"></joined-subclass></span>
<span class="code-tag" style="color: #000091"></class></span>
<span class="code-tag" style="color: #000091"><hibernate-mapping></span>
<span class="code-tag" style="color: #000091"><class name=<span class="code-quote" style="color: #009100">"Parent"</span> table=<span class="code-quote" style="color: #009100">"parent"</span>></span>
<span class="code-tag" style="color: #000091"><id name=<span class="code-quote" style="color: #009100">"id"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"ID"</span>/></span>
<span class="code-tag" style="color: #000091"></id></span>
<span class="code-tag" style="color: #000091"><many-to-one name=<span class="code-quote" style="color: #009100">"a"</span> class=<span class="code-quote" style="color: #009100">"AEntity"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"a_ID"</span> /></span>
<span class="code-tag" style="color: #000091"></many-to-one></span>
<span class="code-tag" style="color: #000091"></class></span>
<span class="code-tag" style="color: #000091"></hibernate-mapping></span>
<span class="code-tag" style="color: #000091"><hibernate-mapping></span>
<span class="code-tag" style="color: #000091"><class name=<span class="code-quote" style="color: #009100">"BEntity"</span> table=<span class="code-quote" style="color: #009100">"B"</span>></span>
<span class="code-tag" style="color: #000091"><id name=<span class="code-quote" style="color: #009100">"id"</span>></span>
<span class="code-tag" style="color: #000091"><column name=<span class="code-quote" style="color: #009100">"ID"</span>/></span>
<span class="code-tag" style="color: #000091"></id></span>
<span class="code-tag" style="color: #000091"></class></span>
<span class="code-tag" style="color: #000091"></hibernate-mapping></span>
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Then, we make criteria request</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Criteria criteria = session.createCriteria(Parent.class);<br> criteria.createAlias("a","a");<br> criteria.createAlias("a.b","b");<br> criteria.list();<br> And get next sql</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">select this_.ID as ID1_5_3_,<br> this_.a_ID as a2_5_3_,<br> a1_.ID as ID1_2_0_,<br> a1_.B_ID as B2_2_0_,<br> a1_1_.B_ID as B2_0_0_,<br> a1_2_.B_ID as B2_1_0_,<br> case when a1_1_.key is not null then 1 when a1_2_.key is not null then 2 when a1_.ID is not null then 0 end as clazz_0_,<br> b2_.ID as ID1_3_1_,<br> b2_.C_ID as C2_3_1_,<br> b2_.ID as ID1_3_2_,<br> b2_.C_ID as C2_3_2_<br> from parent this_<br> inner join A a1_ on this_.a_ID=a1_.ID<br> left outer join Aa a1_1_ on a1_.ID=a1_1_.key<br> left outer join Ab a1_2_ on a1_.ID=a1_2_.key<br> inner join B b2_ on a1_1_.B_ID=b2_.ID<br> inner join B b2_ on a1_2_.B_ID=b2_.ID<br> We can see that B table joins two times and have same name b2_. Is it bug? And how make two joins but with different name of B table. Okay?</p> </td>
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