Bug 132519 The program is differ from the specification
Description: The program is differ from the specification Detail: 1.In the code of BuiltInAggregationFactory.java public static final String TOTAL_TOP_PERCENT_FUNC = "ISTOPPERCENT"; public static final String TOTAL_BOTTOM_PERCENT_FUNC = "ISBOTTOMPERCENT"; should change to: public static final String TOTAL_TOP_PERCENT_FUNC = "ISTOPNPERCENT"; public static final String TOTAL_BOTTOM_PERCENT_FUNC = "ISBOTTOMNPERCENT"; 2. the function Total.isTopNPercent( expr, pct ) the value of Pct should be [0,100]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedQuery.java
AggregateRegistry reg = this.aggrTable.getAggrRegistry( groupLevel, afterGroup, isDetailedRow, cx );
	    Iterator it = expressions.iterator();
	    while ( it.hasNext() )
	    {
	        prepareExpression((IBaseExpression) it.next(), groupLevel, cx, reg);
	    }
	}
	
	/**
	 * Prepares one expression
	 * 
	 * @param expr
	 * @param groupLevel
	 * @param cx
	 * @param reg
	 */
	private void prepareExpression( IBaseExpression expr, int groupLevel,
			Context cx, AggregateRegistry reg )
	{
	    ExpressionCompiler compiler = this.expressionCompiler;
	    
	    if ( expr instanceof IScriptExpression )
	    {
	    	String exprText = ((IScriptExpression) expr).getText();
	    	CompiledExpression handle = compiler.compile( exprText, reg, cx);
	    	expr.setHandle( handle );
	    	expr.setID( IDUtil.nextExprID( ) );
	    }
	    else if ( expr instanceof IConditionalExpression )
	    {