ExtractionResults( IResultIterator resultIterator, IResultMetaData metaData, String[] selectedColumns )
ExtractionResults( IQueryResults queryResults, IResultMetaData metaData, String[] selectedColumns )
	ExtractionResults( IResultIterator resultIterator, IResultMetaData metaData, String[] selectedColumns )	{		this.selectedColumns = selectedColumns;		this.resultIterator = resultIterator;		this.metaData = metaData;	}