ExprMetaUtil.saveExprMetaInfo( queryDefn, outputStream );
ExprMetaUtil.saveExprMetaInfo( queryDefn, nameSet, outputStream );
	private void saveExprMetadata( ) throws DataException	{		OutputStream outputStream = context.getOutputStream( queryResultID,				subQueryID,				DataEngineContext.EXPR_META_STREAM );		ExprMetaUtil.saveExprMetaInfo( queryDefn, outputStream );		try		{			outputStream.close( );		}		catch ( IOException e )		{			throw new DataException( ResourceConstants.RD_SAVE_ERROR, e );		}	}