updateColumnCache( dataSetHandle );
updateColumnCache( dataSetHandle, true );
	public static CachedMetaDataHandle getCachedMetaDataHandle( DataSetHandle dataSetHandle ) throws SemanticException	{		if( dataSetHandle.getCachedMetaDataHandle( ) == null )		{			updateColumnCache( dataSetHandle );		}				return dataSetHandle.getCachedMetaDataHandle( );	}