Bug 212478 Exception occurs when preview the table including a Autotext
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
return new IBaseQueryDefinition[]{query};
			}
			return null;
		}
		protected void addColumBinding( IBaseQueryDefinition transfer,
				ComputedColumnHandle columnBinding ) throws BirtException
		{
			String name = columnBinding.getName( );
			String expr = columnBinding.getExpression( );
			String type = columnBinding.getDataType( );
			int dbType = ModelDteApiAdapter.toDteDataType( type );
			IBaseExpression dbExpr = new ScriptExpression( expr, dbType );
			if ( columnBinding.getAggregateOn( ) != null )
			{
				dbExpr.setGroupName( columnBinding.getAggregateOn( ) );
			}
			IBinding binding = new Binding( name, dbExpr );
			if ( columnBinding.getAggregateOn( ) != null )
				binding.addAggregateOn( columnBinding.getAggregateOn( ) );
			if ( columnBinding.getAggregateFunction( ) != null )
			{
				binding.setAggrFunction( columnBinding.getAggregateFunction( ) );
			}
			String filter = columnBinding.getFilterExpression( );
			if ( filter != null )
			{
				binding.setFilter( new ScriptExpression( filter ) );
			}
			Iterator arguments = columnBinding.argumentsIterator( );
			if ( arguments != null )