Bug 190419 The topn filter doesn't take effect on the datetime type dimension[1102]
Description: The topn filter doesn't take effect on the datetime type dimension[1102] Build number: 2.2.0.v20070601-1347 Steps to reproduce: 1, New a crosstab which includes datetime type dimension 2, Specify a filter on the year level using two filter condition data["year"] topn 2 or dimension["Date"]["year"] topn 2 3, Preview Expected result: Both filter condition can take effect Actual result: No effect only 2005 year in crosstab
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/api/CubeQueryExecutorHelper.java
* @throws IOException
	 */
	private IDiskArray[] getFilterResult( ) throws DataException, IOException
	{
		IDimension[] dimensions = cube.getDimesions( );
		IDiskArray[] dimPosition = new IDiskArray[dimensions.length];
		for ( int i = 0; i < dimPosition.length; i++ )
		{
			dimPosition[i] = getJSFilterResult( (Dimension) dimensions[i],
					getSimpleFilterResult( (Dimension) dimensions[i] ) );
		}
		return dimPosition;
	}
	
	/**
	 * get the top/bottom filter selected dimension positions.
	 * @param dimension
	 * @param dimPosition
	 * @param topBottomfilterList 
	 * @return
	 * @throws IOException 
	 * @throws DataException 
	 */
	private IDiskArray getTopbottomFilterPositions( Dimension dimension,
			IDiskArray dimPosition, List filterList ) throws IOException,
			DataException
	{
		IDiskArray result = null;
		for ( int i = 0; i < filterList.size( ); i++ )
		{