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<img id="email-avatar" src="https://hibernate.onjira.com/secure/useravatar?avatarId=10162" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
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<a class="user-hover" rel="khooke" id="email_khooke" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=khooke" style="color:#6c797f;">Kevin Hooke</a>
created <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7824'>HHH-7824</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-7824'><strong>All MySQL5 dialects generate incorrect sql when multiple tables in where clause</strong></a>
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<strong style="font-weight:normal;color:#505050;">Issue Type:</strong>
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<img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> Bug
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<strong style="font-weight:normal;color:#505050;">Affects Versions:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
4.0.1 </td>
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<strong style="font-weight:normal;color:#505050;">Assignee:</strong>
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Unassigned </td>
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<strong style="font-weight:normal;color:#505050;">Components:</strong>
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query-hql </td>
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<strong style="font-weight:normal;color:#505050;">Created:</strong>
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25/Nov/12 12:02 AM
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
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<p style='margin-top:0;margin-bottom:10px;'>Generated SQL when there is more than 1 table in the from clause immediately followed by an inner join results in incorrect SQL and this error:<br/>
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'recipeingr0_.unit_id' in 'on clause'</p>
<p style='margin-top:0;margin-bottom:10px;'>Example generated SQL:<br/>
select<br/>
recipeingr0_.itemId as col_0_0_,<br/>
recipeingr0_.recipeId as col_1_0_,<br/>
item1_.name as col_2_0_,<br/>
recipeingr0_.quantity as col_3_0_,<br/>
recipeingr0_.unit_id as col_4_0_ <br/>
from<br/>
RecipeIngredient recipeingr0_,<br/>
Item item1_ <br/>
inner join<br/>
Unit unit2_ <br/>
on recipeingr0_.unit_id=unit2_.id <br/>
where<br/>
recipeingr0_.itemId=item1_.id <br/>
and recipeingr0_.recipeId=? </p>
<p style='margin-top:0;margin-bottom:10px;'>If this is modified to surround both tables in from clause with () then it is parsed correctly.</p>
<p style='margin-top:0;margin-bottom:10px;'>This is explained in this MySQL bug that was explained as working as designed:<br/>
<a href="http://bugs.mysql.com/bug.php?id=13551">http://bugs.mysql.com/bug.php?id=13551</a><br/>
and this one:<br/>
<a href="http://bugs.mysql.com/bug.php?id=15952">http://bugs.mysql.com/bug.php?id=15952</a></p>
<p style='margin-top:0;margin-bottom:10px;'>Described in the 5.0 manual here:<br/>
<a href="http://dev.mysql.com/doc/refman/5.0/en/join.html">http://dev.mysql.com/doc/refman/5.0/en/join.html</a><br/>
"Previously, the comma operator (,) and JOIN both had the same precedence, so the join expression t1, t2 JOIN t3 was interpreted as ((t1, t2) JOIN t3). Now JOIN has higher precedence, so the expression is interpreted as (t1, (t2 JOIN t3)). This change affects statements that use an ON clause, because that clause can refer only to columns in the operands of the join, and the change in precedence changes interpretation of what those operands are."</p>
<p style='margin-top:0;margin-bottom:10px;'>The entities where I ran into this:<br/>
Item 1-* RecipeIngredient *-1 Recipe<br/>
RecipeIngredient *-1 Unit</p>
<p style='margin-top:0;margin-bottom:10px;'>And the HQL:<br/>
select new kh.groceries.domain.RecipeIngredientDetail(ri.itemId, ri.recipeId, ri.item.name, ri.quantity, ri.unit)<br/>
from RecipeIngredient ri where ri.recipeId = :recipeId</p>
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<strong style="font-weight:normal;color:#505050;">Environment:</strong>
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JBoss AS7.1.1, MySQL 5.1.30
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<strong style="font-weight:normal;color:#505050;">Project:</strong>
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<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a style="color:#6c797f;" href="https://hibernate.onjira.com/browse/HHH">Hibernate ORM</a>
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<strong style="font-weight:normal;color:#505050;">Priority:</strong>
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<img src="https://hibernate.onjira.com/images/icons/priority_major.gif" height="16" width="16" border="0" align="absmiddle" alt="Major"> Major
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<strong style="font-weight:normal;color:#505050;">Reporter:</strong>
</td>
<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<a class="user-hover" rel="khooke" id="email_khooke" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=khooke" style="color:#6c797f;">Kevin Hooke</a>
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