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
odiDataSource = dataSource.getOdiDataSource( );
				 
				
				odiDataSource.setAppContext( queryAppContext );
			}
		}
	}
	/**
	 * Populates odiQuery with this query's definitions
	 * 
	 * @throws DataException
	 */
	protected void populateOdiQuery( ) throws DataException
	{
		assert odiQuery != null;
		assert this.baseQueryDefn != null;
		Context cx = Context.enter( );
		try
		{
			
			populateGrouping( cx );
			
			List sorts = this.baseQueryDefn.getSorts( );
			if ( sorts != null && !sorts.isEmpty( ) )
			{
				IQuery.SortSpec[] sortSpecs = new IQuery.SortSpec[sorts.size( )];
				Iterator it = sorts.iterator( );
				for ( int i = 0; it.hasNext( ); i++ )
				{
					ISortDefinition src = (ISortDefinition) it.next( );