"ColumnReferenceExpression", new Integer( columnIndex ) ); assert( columnIndex >= 0 ); m_columnIndex = columnIndex; rowIndicator = rowInd;
"ColumnReferenceExpression" ,columnName); assert( columnName != null || columnName.length() == 0 ); m_columnName = columnName; m_columnIndex = -1; rowIndicator = rowInd;
	ColumnReferenceExpression( String rowInd, int columnIndex )	{		logger.entering( ColumnReferenceExpression.class.getName( ),				"ColumnReferenceExpression",				new Integer( columnIndex ) );		assert( columnIndex >= 0 );		m_columnIndex = columnIndex;		rowIndicator = rowInd;		logger.exiting( ColumnReferenceExpression.class.getName( ),				"ColumnReferenceExpression" );	}