def column(self, model=None):
try:<EOL><INDENT>schema = (self.__model or model).schema()<EOL><DEDENT>except AttributeError:<EOL><INDENT>return None<EOL><DEDENT>else:<EOL><INDENT>return schema.column(self.__column)<EOL><DEDENT>
Returns the column instance for this query.

:return     <orb.Column>