Bug 122854 There is redundant columns in "available columns" list in "export data" dialog.
Description: There is redundant columns in "available columns" list in "export data" dialog. Steps to reproduce: 1. Preview attached design in web viewer. 2. Select the table and click on "export" button. 3. There is a "detail" column name in "available columns" list which is not data set column.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/Report.java
*            The basePath to set.
	 */
	public void setBasePath( String basePath )
	{
		this.basePath = basePath;
	}
	public StyleDeclaration getDefaultStyle( )
	{
		return defaultStyle;
	}
	public void setDefaultStyle( StyleDeclaration defaultStyle )
	{
		this.defaultStyle = defaultStyle;
	}
	/**
	 * the name of Report root style
	 */
	public String getRootStyleName( )
	{
		return rootStyleName;
	}
	public void setRootStyleName( String rootStyleName )
	{
		this.rootStyleName = rootStyleName;
	}
	public List getErrors( )
	{
		return this.reportDesign.getErrorList( );
	}
}