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http://opensource.atlassian.com/projects/hibernate/browse/ANN-651?page=co...
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Emmanuel Bernard commented on ANN-651:
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Tested on HSQLDB, it works since HSQLDB does not care about mixing aliases and table
names.
The only solution is to get the Hibernate core bug fixed.
Bad SQL generated when using the @OrderBy annotation
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Key: ANN-651
URL:
http://opensource.atlassian.com/projects/hibernate/browse/ANN-651
Project: Hibernate Annotations
Issue Type: Bug
Affects Versions: 3.3.0.ga
Environment: Hibernate Annotations 3.3.0.GA
Hibernate 3.2.5
EntityManager 3.3.1.GA
Hibernate Validator 3.0.0.GA
Oracle 10g
Reporter: Eyal Lupu
Attachments: orderBy-bug-test-case.zip
When upgrading to the versions above a code which works for months now stopped working,
the reason is that Hibernate generates a bad SQL statment.
Attached is a test case:
Having the following classes
Parent
/ \
Child1 Child2
The parent has a property named 'elementType'. Child1 has a list of Child2 (its
sibling) which is ordered using the
@OrderBy("elementType") annotation. When fetching a Child1 instance, using the
EntityManager.find(...) method, Hibernate generates an
invalid SQL:
Hibernate: /* load bug.Child1 */ select child1x0_.ID as ID0_1_, child1x0_.ELEMENT_TYPE as
ELEMENT3_0_1_, elements1_.PARENT_ID as PARENT4_3_, elements1_.ID as ID3_, elements1_.ID as
ID0_0_, elements1_.ELEMENT_TYPE as ELEMENT3_0_0_, elements1_.PARENT_ID as PARENT4_0_0_
from BUG_TST child1x0_ left outer join BUG_TST elements1_ on
child1x0_.ID=elements1_.PARENT_ID where child1x0_.ID=? and
child1x0_.DTYPE='Child1' order by BUG_TST.ELEMENT_TYPE asc
The error is in the order by clause, you can't use the table name if you gave it an
alias - you should use the alias.
* If I move the 'elementType' property down to Child2 it works!
*If I remove the @OrderBy it also works
-- It is hard to know if this is an Hibernate core or Hibernate annotation bug.
This is the exception:
Caused by: org.hibernate.exception.SQLGrammarException: could not load an entity:
[bug.Child1#1]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:67)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1874)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
at
org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3044)
at
org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:395)
at
org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:375)
at
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:139)
at
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:195)
at
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:103)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:175)
... 1 more
Caused by: java.sql.SQLException: ORA-00904:
"BUG_TST"."ELEMENT_TYPE": invalid identifier
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:331)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:288)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:216)
at
oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:799)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1038)
at
oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:839)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1133)
at
oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3285)
at
oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3329)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1787)
at org.hibernate.loader.Loader.doQuery(Loader.java:674)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1860)
... 13 more
-- Attached is a test case
--
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