#NEWLINE# def diff_map( self , inchk ) : #NEWLINE# #INDENT# 'Generate SQL to transform an existing CHECK constraint\n\n        :param inchk: a YAML map defining the new CHECK constraint\n        :return: list of SQL statements\n\n        Compares the CHECK constraint to an input constraint and generates\n        SQL statements to transform it into the one represented by the\n        input.\n        ' #NEWLINE# stmts = [ ] #NEWLINE# stmts . append ( self . diff_description ( inchk ) ) #NEWLINE# return stmts