Bug 134988 [regression]Available items in Query didn't change when change data source in Edit Data Set Dialog.
Description: Available items in Query didn't change when change data source in Edit Data Set Dialog. Steps to reproduce: 1. New two different data sources. 2. New a dataset, change data source, view Available Items in Query pane. Expected result: Available Items in Query pane changed according to new Data source. Actual result: Available Items in Query pane kept unchanged.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
if ( selection.length > 0 )
		{
			Object obj = selection[0].getData( );
			 table
			if ( obj instanceof DbObject )
			{
				event.data = getDnDString( ( (DbObject) obj ).getName( ) );
			}
			
			else if ( obj instanceof Procedure )
			{
				event.data = getDnDString( ( (Procedure) obj ).getProcedureNameWithSchema( ) );
			}
			 column
			else
			{
				event.data = getDnDString( selection[0].getData( ) );
			}
		}
	}
	
	/**
	 * @param obj
	 * @return
	 */
	private Object getDnDString(Object obj )
	{
		if ( !identifierQuoteStringCheckBox.getSelection( )
				|| !( obj instanceof String ) )
			return obj;