I am using Hibernate 3.2.2.
Database server: Mysql Server 5.0

I have the following class structure:

@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class A {
private Long id;

// getter and setter
}

@Entity
public class B extends A {
private String name;
// getter and setter
}

When i'm trying to delete object of class B with HQL:
"delete from " + B.class.getName() + " b where b.id=? "
hibernate generates the following SQL:

insert into HT_B select b_.id as id from B b inner join A a_ on b_.id=a_.id where id=?

which is wrong - i get the exception:

com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Column 'id' in where clause is ambiguous
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:931)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2934)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1616)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1708)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3255)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1293)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1566)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1480)
at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1465)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:105)
at org.hibernate.hql.ast.exec.MultiTableDeleteExecutor.execute(MultiTableDeleteExecutor.java:93)
at org.hibernate.hql.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:396)
at org.hibernate.engine.query.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:259)
at org.hibernate.impl.SessionImpl.executeUpdate(SessionImpl.java:1141)
at org.hibernate.impl.QueryImpl.executeUpdate(QueryImpl.java:94)
at impl.ftp.DeleteFtpFreeHostAction.execute(DeleteFtpFreeHostAction.java:38)
at util.hibernate.actions.ActionBase.execute(ActionBase.java:23)
at ui.UserBean.deleteItem(UserBean.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.el.parser.AstValue.invoke(AstValue.java:131)
at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
at org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:68)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91)
at javax.faces.component.UICommand.broadcast(UICommand.java:383)
at javax.faces.component.UIData.broadcast(UIData.java:854)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:447)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:752)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:866)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:716)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1498)
at java.lang.Thread.run(Unknown Source)
12:38:45,932 WARN JDBCExceptionReporter:77 - SQL Error: 1052, SQLState: 23000
12:38:45,932 ERROR JDBCExceptionReporter:78 - Column 'id' in where clause is ambiguous

Looks like bugs described here:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-1657
http://lists.jboss.org/pipermail/hibernate-issues/2007-February/003548.html
are not solved.

Does anyone know the solution of this problem except using Session.delete?