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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-10768" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-48da4a2b-2f57-4e4a-b93e-d79083a4b353" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10768" style="color: #3b73af; text-decoration: none">HHH-10768</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-10768" style="color: #3b73af; text-decoration: none">Treats in dis-/conjunctions are incorrectly collected at the root of the query </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-48da4a2b-2f57-4e4a-b93e-d79083a4b353" 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, 4.3.11 </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"> 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"> testcase.tar.gz </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"> 24/May/2016 12:40 PM </td>
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<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-3b181d77-c5ea-4b88-b711-c3ef3eb0d55a" height="16" width="16" border="0" align="absmiddle" alt="Major" style="vertical-align: text-bottom"> Major </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"> <a class="user-hover" rel="papegaaij" id="email_papegaaij" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=papegaaij" style="color:#6c797f;; color: #3b73af; text-decoration: none">Emond Papegaaij</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">When building queries with con- and disjunctions in combination with treats on a SINGLE_TABLE inheritance, all types are collected in a single <tt>DTYPE IN ('SubType1', 'SubType2')</tt> regardless of the location in the original query. This results in queries that are semantically different from the original criteria or JPQL queries. The attached testcase contains two example queries that both should not return any records, but do return 1 or 2 records.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Both testcases are built on the same, simple entity hierarchy: a BaseType with 2 SubTypes. All three types define a single column: basevalue, subvalue1 and subvalue2. 2 records are inserted: SubType1(basevalue=200, subvalue1=null) and SubType2(basevalue=100, subvalue2=null).</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The following JPQL query</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 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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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">
select generatedAlias0 from BaseType as generatedAlias0 where
( ( treat(generatedAlias0 as org.hibernate.bugs.SubType1).basevalue=100 )
and ( treat(generatedAlias0 as org.hibernate.bugs.SubType1).subvalue1 is <span class="code-keyword" style="color: #000091">null</span> ) ) or
( ( treat(generatedAlias0 as org.hibernate.bugs.SubType2).basevalue=200 )
and ( treat(generatedAlias0 as org.hibernate.bugs.SubType2).subvalue2 is <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">is translated to the following (simplified) SQL:</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">
select * from BaseType basetype0_
where
basetype0_.DTYPE in (
'SubType2', 'SubType1'
)
and (
basetype0_.basevalue=100
and ( basetype0_.subvalue1 is <span class="code-keyword" style="color: #000091">null</span> )
or basetype0_.basevalue=200
and ( basetype0_.subvalue2 is <span class="code-keyword" style="color: #000091">null</span> )
)
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The first expression in the disjunction is supposed to match SubType1 only, but now incorrectly matches the SubType2 record. The same holds for the second expression, with the types swapped. The restriction on DTYPE must be part of the sub-expressions inside the disjunction.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Note that this example is very similar to one of the examples in the JPA 2.1 spec, section 4.4.9, and I therefore expect this example to also yield an invalid query (and invalid results if, for example, Exempt has an hours column with records > 100):</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">
SELECT e FROM Employee e
WHERE TREAT(e AS Exempt).vacationDays > 10
OR TREAT(e AS Contractor).hours > 100
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Changing the disjunction to a conjunction and using '100' for both restrictions on basevalue, results in the following SQL:</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">
select * from BaseType basetype0_
where
basetype0_.DTYPE in (
'SubType2', 'SubType1'
)
and (
basetype0_.basevalue=100
and ( basetype0_.subvalue1 is <span class="code-keyword" style="color: #000091">null</span> )
and basetype0_.basevalue=100
and ( basetype0_.subvalue2 is <span class="code-keyword" style="color: #000091">null</span> )
)
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Allthough this second example is a bit far-fetched, it should never return any results (a record can never be a SubTyp1 and SubType2 at the same time). As with the first example, the restrictions on DTYPE must be moved to the sub-expressions inside the conjunction.</p> </td>
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