Bug 200919 Add quotation for column containing separator character when export data.[0002]
Description: Add quotation for column containing separator character when export data. Build number:2.2.1.v20070823 Steps to reproduce: 1. New sample data source and dataset. 2. Add a computed column with name a,b and value "a,b". 3. Drag the dataset to Layout. 4. Preview in Web Viewer and Export Data with Comma. Expected result: Column name is quoated as values. Actual result: Column name a,b isn't quotated so it will be treated as two columns. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
* @param filters
	 * @param locale
	 * @param outputStream
	 * @param encoding
	 * @throws RemoteException
	 */
	public void extractData( IReportDocument document, String resultSetName,
			Collection columns, Locale locale, OutputStream outputStream,
			String encoding ) throws RemoteException
	{
		extractData( document, resultSetName, columns, locale, outputStream,
				encoding, ParameterAccessor.DEFAULT_SEP, false );
	}
	/**
	 * Extract data.
	 * 
	 * @param document
	 * @param resultSetName
	 * @param id
	 * @param columns
	 * @param filters
	 * @param locale
	 * @param outputStream
	 * @param encoding
	 * @param sep
	 * @param isExportDataType
	 * @throws RemoteException
	 */
	public void extractData( IReportDocument document, String resultSetName,
			Collection columns, Locale locale, OutputStream outputStream,