docs: def compile(self):
          """Compiles the delete sql statement"""
          sql = ''
          sql += 'DELETE FROM ' + self.dialect.quote_table(self._table)
          if self._where:
              sql += ' WHERE ' + self.compile_condition(self._where)
          if self._order_by:
              sql += ' ' + self.compile_order_by(self._order_by)
  
          if self._limit:
              sql += ' LIMIT ' + self._limit
          return sql