Bug 139365 The result of grouping is wrong
Description: The result of grouping is wrong. Step to reproduce: Steps to reproduce: 1. New a report. 2. Create a data source and a data set based on the report. 3. Drag the dataset to the layout, and set two groups on the table. The first level group information: Group key: CITY Interval type: prefix Range: 1 The second level group information: Group key: CUSTOMERNUMBER Interval type: Interval Range: 4 4. Save and preview. (Please refer to the attached design file) Actual result: The result of grouping is wrong. Expected result: In the second level group, the CUSTOMERNUMBER 157, 303, 357, 323 shouldnt in a group. They must be regard as single group according to the conditional of the second level group.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutor.java
List computedColumns = null;
		    
			computedColumns = this.dataSet.getComputedColumns( );
			if ( computedColumns == null )
				computedColumns = new ArrayList();
			if ( computedColumns.size() > 0 || temporaryComputedColumns.size( ) > 0 )
			{
				IResultObjectEvent objectEvent = new ComputedColumnHelper( this.dataSet, computedColumns, temporaryComputedColumns);
				odiQuery.addOnFetchEvent( objectEvent );
				this.dataSet.getComputedColumns().addAll(temporaryComputedColumns);
			}
	    	if ( dataSet.getEventHandler() != null )
	    	{
	    		OnFetchScriptHelper event = new OnFetchScriptHelper( dataSet ); 
	    		odiQuery.addOnFetchEvent( event );
		    }
	    	
		    if ( dataSetFilters.size( ) + queryFilters.size( ) + multipassFilters.size() > 0 )
		    {
		    	IResultObjectEvent objectEvent = new FilterByRow( dataSetFilters, queryFilters, multipassFilters,
		    			dataSet );
		    	odiQuery.addOnFetchEvent( objectEvent );
		    }
		    
			
		    odiQuery.setMaxRows( this.baseQueryDefn.getMaxRows() );
		}
		finally
		{