Bug 147977 Chart editor does not use container's column bindings
1) create data source 2) create data set: select * from customers 3) create table 4) bind country, customer name to table 5) group by country 6) create a binding for total_by_country which aggregates # of customers in each country. put a data element in group footer and bind to total_by_country 7) in group header put chart 8) in data tab specify inherit from container Result: You see columns for report data set created in step 2. Expected Result: Just 3 columns for the 3 bindings created in 4 and 6.
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/api/APITestCase.java
* @param createSql
	 * @param dataFileName
	 * @throws Exception
	 */
	private void prepareTestTable( String tableName, String createSql,
			String dataFileName ) throws Exception
	{		
		if ( dataSourceInstance == null )
			dataSourceInstance = JDBCDataSource.newInstance( );
		
		
		this.dataSourceInstance.createTable( tableName,
				createSql,
				true );
		
		
		this.dataSourceInstance.populateTable( tableName,
				getInputFolder(dataFileName) );
	}
	
	/**
	 * Normally, an API test case will be based on a particular data source, so
	 * before test begins, test case provides which data source will be used and
	 * then its data will be prepared and meantime its data source and data set
	 * will be defined in DataEngine. If the return value is null, there is no
	 * any datasource and dataset is defined in dataEngine, which means other
	 * methods such as newDataSet and newReportQuery can not be used.
	 * 
	 * @return which data source will be used in this test case
	 */