Bug 132515 Expression like "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" is return an error
Description: Add an expression like "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" is return an error.The nesting "Toltal" seem not to be work. Step to reproduce: 1.new a datasource and dataset 2.drag the dataset to layout veiw for a table 3.set a group on the table 4.Insert a data into the group header with the expression e.g. "Toltal.rank(Tolta.ave(row[a]),ture,Null,1)" Actual result: An error was thrown out Expected result: It should work correctly in order to support some requirments
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/QueryExecutor.java
}
	/**
	 * 
	 * @param expr
	 * @return
	 */
	private String getColumnRefExpression( String expr )
	{
		return "row[\""
				+ JavascriptEvalUtil.transformToJsConstants( expr ) + "\"]";
	}
	void setParentExecutorHelper( IExecutorHelper helper )
	{
		this.parentHelper = helper;
	}
	/**
	 * 
	 * @param cx
	 * @param dataSetFilters
	 * @param queryFilters
	 * @param temporaryComputedColumns
	 * @return
	 */
	private List prepareFilters( Context cx, List dataSetFilters,
			List queryFilters, List temporaryComputedColumns )
	{
		List result = new ArrayList( );
		prepareFilter( cx, dataSetFilters, temporaryComputedColumns, result );
		prepareFilter( cx, queryFilters, temporaryComputedColumns, result );
		return result;