Bug 202038 errors occurred when preview the attached design file.
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/binding/FeaturesTest.java
this.createAndRunQuery( bindingNameGroup,
				bindingExprGroup,
				groupDefn,
				null,
				null,
				null,
				null,
				null,
				filterDefn,
				bindingNameRow,
				bindingExprRow );
		
		checkOutputFile();
	}
	
	/**
	 * Test filters in data sets and query with . The dataset filters should 
	 * always be applied before the query filters.
	 */
	public void test15( ) throws Exception
	{
		this.dataSet.addFilter( new FilterDefinition(
				new ConditionalExpression( "row.AMOUNT",
						ConditionalExpression.OP_BOTTOM_N, "7" ) ) );
		
		String[] bindingNameGroup = new String[2];
		bindingNameGroup[0] = "GROUP_COUNTRY";
		bindingNameGroup[1] = "GROUP_CITY";
		IBaseExpression[] bindingExprGroup = new IBaseExpression[2];