Bug 207564 Column sorting based on data type
Only string sorting happens when a column is selected in preview result page of DataSet Editor irrespective of type of data shown in that column. I'd like to be able to sort the data based on its datatype when a column is selected.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/DataSetProvider.java
}
		}
		return element;
	}
	
	/**
	 * 
	 * @param dataSet
	 * @param useColumnHints
	 * @param useFilters
	 * @return
	 * @throws BirtException
	 */
	public final IBaseDataSetDesign getDataSetDesign( DataSetHandle dataSet,
			boolean useColumnHints, boolean useFilters ) throws BirtException
	{
		if ( dataSet != null )
		{
			DataRequestSession session = getDataRequestSession( dataSet );
			return getDataSetDesign( dataSet, useColumnHints, useFilters, session );
		}
		return null;
	}
	/**
	 * 
	 * @param session
	 * @param dataSet
	 * @param useColumnHints
	 * @param useFilters
	 * @return