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
/**
	 * Indicates if the report will use the detail rows. Allows the data
	 * transform engine to optimize the query if the details are not used.
	 * 
	 * @return true if the detail rows are used, false if not used
	 */
	public boolean usesDetails( )
	{
		return hasDetail;
	}
	
	
	/**
	 * @param usesDetails Whether detail rows are used in this query
	 */
	public void setUsesDetails(boolean usesDetails) 
	{
		this.hasDetail = usesDetails;
	}
	/**
	 * Returns the parent query. The parent query is the outer query which encloses
	 * this query
	 */
	public IBaseQueryDefinition getParentQuery() 
	{
		return parentQuery;
	}
	
	/**
	 * Gets the maximum number of detail rows that can be retrieved by this report query