Bug 128166 the xml data can be displayed incorrectly
Description: the xml data can be displayed incorrectly Steps to reproduce: 1. import the attached report design file. 2. set a table mapping as '//Book' 3. add a column mapping '../@location' 4. save and preview. Actual result: the 'Sunderland' is displayed Expect result: the 'Paris' is displayed
data/org.eclipse.birt.report.data.oda.xml/src/org/eclipse/birt/report/data/oda/xml/util/RelationInformation.java
String originalPath ) throws OdaException
	{
		this.index = index;
		this.name = name;
		this.type = type;
		if ( !DataTypes.isValidType( type ) )
			throw new OdaException( Messages.getString( "RelationInformation.InvalidDataTypeName" ) );
		this.path = fixTrailingAttr( SaxParserUtil.processParentAxis( combineColumnPath( rootPath, relativePath ) ) );
		this.originalPath = originalPath;
		generateBackRefNumber( rootPath, originalPath );
	}
	/**
	 * Combine column root path and the relative column path.
	 * 
	 * @param rootPath
	 * @param declaredPath
	 * @return
	 */
	private String combineColumnPath( String rootPath, String declaredPath)
	{
		if (declaredPath == null || declaredPath.length() == 0)
			return rootPath;
		else if( declaredPath.startsWith("[")||declaredPath.startsWith("/"))
			return rootPath+declaredPath;
		return rootPath + "/" + declaredPath;
		
	}
	
	/**
	 * @param originalPath