#NEWLINE# def get_field_identifiers( self ) : #NEWLINE# #INDENT# '\n        Builds a list of the field identifiers for all tables and joined tables by calling\n        ``get_field_identifiers()`` on each table\n\n        :return: list of field identifiers\n        :rtype: list of str\n        ' #NEWLINE# field_identifiers = [ ] #NEWLINE# for table in self . tables : #NEWLINE# #INDENT# field_identifiers += table . get_field_identifiers ( ) #NEWLINE# #UNINDENT# for join_item in self . joins : #NEWLINE# #INDENT# field_identifiers += join_item . right_table . get_field_identifiers ( ) #NEWLINE# #UNINDENT# return field_identifiers