Bug 189100 [Regression]X-axis data column issue[0001]
Description: [Regression]X-axis data column issue[0001] Step: 1.New a sample datasource and dataset from OFFICES 2.New a chart and use the dataset 3.Change the data type of OFFICECODE from string to integer. 4.Drop the column of OFFICECODE to Value(Y)Series. Actual result: Show the error message: Unable to use a text data to render a numerical/datetime axis.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/api/querydefn/BaseQueryDefinition.java
{
	protected List 		        groups = new ArrayList();
	protected boolean 			hasDetail = true;
	protected IBaseQueryDefinition 	parentQuery;
	protected int				maxRowCount = 0;
	
	private   boolean           cacheQueryResults = false;
	
	
	private 	Map resultExprsMap = new LinkedHashMap( );
	private 	Map bindingMap = new HashMap();