Bug 191627 [Regression]Exception occurs when first preview the joint dataset[0706]
Description: [Regression]Exception occurs when preview the flatfile and sampledb joint dataset[0706] Build number: 2.2.0.v20070608-0630 Steps to reproduce: 1, New a flatfile dataset 2, New a CUSTOMER dataset 3, Join two datasets with STATE column 4, Preview in dataset Expected result: Preview successfully Actual result: Exception occurs Error log: A BIRT exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Data Engine Plug-in ID:org.eclipse.birt.data Version:2.2.0.v20070607-1421 Error Code:data.engine.ColumnBindingReferToInexistColumn Error Message:Column binding "Employee::CUSTOMERNUMBER" has referred to a data set column "Employee::CUSTOMERNUMBER" which is not exist.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedJointDataSourceQuery.java
protected IQuery createOdiQuery( ) throws DataException
		{
			setCurrentDataSet( dataSetDesign );
			populatePreparedQuery( );
			
			
			
			
			initializeResultClass( dataEngine, appContext );
			return new JointDataSetQuery( resultClass );
		}
		/*
		 * @see org.eclipse.birt.data.engine.impl.PreparedQuery.Executor#executeOdiQuery()
		 */
		protected org.eclipse.birt.data.engine.odi.IResultIterator executeOdiQuery(
				IEventHandler eventHandler ) throws DataException
		{
			if ( doesLoadFromCache( ) == true )
			{
				DataSourceQuery dsQuery = new DataSourceQuery( dataEngine.getSession( ) );
				JointDataSetQuery jointQuery = (JointDataSetQuery) odiQuery;
				dsQuery.setExprProcessor( jointQuery.getExprProcessor( ) );
				List fetchEvents = jointQuery.getFetchEvents( );
				if ( fetchEvents != null )
					for ( int i = 0; i < fetchEvents.size( ); i++ )
						dsQuery.addOnFetchEvent( (IResultObjectEvent) fetchEvents.get( i ) );
				dsQuery.setMaxRows( jointQuery.getMaxRows( ) );
				dsQuery.setOrdering( toList( jointQuery.getOrdering( ) ) );
				dsQuery.setGrouping( toList( jointQuery.getGrouping( ) ) );
				return dsQuery.execute( eventHandler );