Bug 192829 Aggregation binding filter doesn't work for crosstab
The filter condition on bindings for Crosstab doesn't take effect. Currently Dte hasn't supported this yet.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/olap/data/impl/aggregation/AggregationExecutor.java
* @return
	 */
	private String[][] getKeyNames( int aggregationIndex )
	{
		String[][] result = new String[levelIndex[aggregationIndex].length/2][];
		int[] tmpLevelIndex = levelIndex[aggregationIndex];
		for ( int i = 0; i < levelIndex[aggregationIndex].length / 2; i++ )
		{
			result[i] = dimesionResultIterators[tmpLevelIndex[i * 2]].getDimesion( )
					.getHierarchy( )
					.getLevels( )[tmpLevelIndex[i * 2 + 1]].getKeyNames( );
		}
		return result;
	}
	/**
	 * 
	 * @param aggregationIndex
	 * @return
	 */
	private String[][] getAttributeNames( int aggregationIndex )
	{
		String[][] result = new String[levelIndex[aggregationIndex].length/2][];
		int[] tmpLevelIndex = levelIndex[aggregationIndex];
		for ( int i = 0; i < levelIndex[aggregationIndex].length / 2; i++ )
		{
			result[i] = dimesionResultIterators[tmpLevelIndex[i * 2]].getDimesion( )
					.getHierarchy( )
					.getLevels( )[tmpLevelIndex[i * 2 + 1]].getAttributeNames( );
		}
		return result;