[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3988) double left join within same column names returns wrong result

[Penkov Vladimir (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33546#action_33546 ] 

Penkov Vladimir commented on HHH-3988:
--------------------------------------

No, this workaround doesn't seem to work:

617 [main] INFO org.hibernate.tool.hbm2ddl.SchemaUpdate - schema update complete
Hibernate: select log.from_number, log.to_number, entries_from.name fromName, entries_to.name toName
from test_log log
left join test_entries entries_from on log.from_number=entries_from.number
left join test_entries entries_to on log.to_number=entries_to.number 
737 [main] INFO org.hibernate.type.StringType - could not read column value from result set: name; Column 'name' not found.
738 [main] WARN org.hibernate.util.JDBCExceptionReporter - SQL Error: 0, SQLState: S0022
738 [main] ERROR org.hibernate.util.JDBCExceptionReporter - Column 'name' not found.
Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not execute query
	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
	at org.hibernate.loader.Loader.doList(Loader.java:2235)
	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129)
	at org.hibernate.loader.Loader.list(Loader.java:2124)
	at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312)
	at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1723)
	at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
	at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175)
	at mixdev.web.adressbook.module.JoinTest.test(JoinTest.java:54)
	at mixdev.web.adressbook.module.JoinTest.main(JoinTest.java:35)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: java.sql.SQLException: Column 'name' not found.
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
	at com.mysql.jdbc.ResultSetImpl.findColumn(ResultSetImpl.java:1093)
	at com.mysql.jdbc.ResultSetImpl.getString(ResultSetImpl.java:5488)
	at org.apache.commons.dbcp.DelegatingResultSet.getString(DelegatingResultSet.java:225)
	at org.hibernate.type.StringType.get(StringType.java:41)
	at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:184)
	at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:210)
	at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.extract(CustomLoader.java:497)
	at org.hibernate.loader.custom.CustomLoader$ResultRowProcessor.buildResultRow(CustomLoader.java:443)
	at org.hibernate.loader.custom.CustomLoader.getResultColumnOrRow(CustomLoader.java:340)
	at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:629)
	at org.hibernate.loader.Loader.doQuery(Loader.java:724)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
	at org.hibernate.loader.Loader.doList(Loader.java:2232)
	... 13 more

Process finished with exit code 1




But the sql from workaround do works in mysql console.

> double left join within same column names returns wrong result
> --------------------------------------------------------------
>
>                 Key: HHH-3988
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3988
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: query-sql
>    Affects Versions: 3.2.4.sp1
>         Environment: mysql 5.0.51b
>            Reporter: Penkov Vladimir
>         Attachments: JoinTest.java, jointest.xml
>
>
> I have 2 tables: 
> audit: 
> from_number to_number 
> 123 321 
> 222 111 
> 333 123 
> address_book_contact: 
> phone name 
> 123 Bill 
> this query 
> SELECT a.from_number, a.to_number, b.name, c.name FROM audit a 
> LEFT JOIN address_book_contact b 
> ON (a.FROM_NUMBER=b.PHONE) 
> LEFT JOIN address_book_contact c 
> ON (a.TO_NUMBER=c.PHONE) 
> returns 
> 123 321 Bill null 
> 222 111 null null 
> 333 123 null Bill 
> in mysql query browser  and in java app using pure jdbc
> and returns 
> 123 321 Bill Bill 
> 222 111 null null 
> 333 123 null null 
> in java app using hibernate native query

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