Bug 132805 Set descending to outer group will affect inner group.
Description: Set descending to outer group will affect inner group. Steps to reproduce: 1. New a sample datasource and dataset from orders. 2. Drag the dataset to Layout. 3. Add a group on ordernumber, interval 10, descending. 4. Add another group on orderdate, interval day 2, ascending. 5. Preview. Expected result: Data are grouped correctly. Actual result: Inner group didn't work unless you set outer group's sort to asc.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutor.java
eventHandler.setExecutorHelper( helper );
		
		
		odiResult = executeOdiQuery( eventHandler );
		
		
		helper.setJSRowObject( this.dataSet.getJSResultRowObject( ) );
		
		resetComputedColumns();
		
		this.dataSet.setResultSet( odiResult, false );
			
	    
	    aggregates = new AggregateCalculator( this.aggrTable, odiResult );
		    
	    
	    aggregates.calculate( getQueryScope() );
		
		this.isExecuted = true;
		
		logger.logp( Level.FINER,
				QueryExecutor.class.getName( ),
				"execute",
				"Finish executing" );
	}
	
	private void resetComputedColumns() {
		List l = this.getDataSet().getComputedColumns();
		if( l!= null)
			l.removeAll( this.temporaryComputedColumns );