Bug 124193 Parent axis doesn't work for recursive XPath
When table mapping for XML files is specified via recursive XPath: e.g. "//book", the parent axis access is broken for column mappings on such table: e.g. "../bookstore/@name" will not work. Same parent axis access works fine if non-recursive XPath is used for table mapping: e.g. "/bookstore/book".
data/org.eclipse.birt.report.data.oda.xml/src/org/eclipse/birt/report/data/oda/xml/util/RelationInformation.java
throw new OdaException( Messages.getString("RelationInformation.InputStringCannotBeNull"));
		
		String[] tables = relationString.split( CONST_TABLE_DELIMITER );
		for ( int i = 0; i < tables.length; i++ )
		{
			String[] temp = tables[i].trim( )
					.split( CONST_TABLE_COLUMN_DELIMITER );
			assert ( temp.length == 3 );
			
			TableInfo tableInfo = new TableInfo( temp[0].trim( ),
					temp[1].substring( 1, temp[1].length( ) - 1 ).trim( ) );
			
			String[] columns = temp[2].trim( ).split( CONST_COLUMN_DELIMITER );
			
			for ( int j = 0; j < columns.length; j++ )
			{
				String trimedColumn = columns[j].trim( );
				
			
				String[] columnInfos = trimedColumn.substring( 1,
						trimedColumn.length( ) - 1 )
						.split( CONST_COLUMN_METAINFO_DELIMITER );
				
				
				
				
				String columnXpath = null;
				if( columnInfos.length == 3 )
				{
					columnXpath = columnInfos[2];