| 233 | self._no_parameters = False |
| 234 | |
| 235 | def _process_select_values(self, statement: ValuesBase) -> None: |
| 236 | assert statement._select_names is not None |
| 237 | parameters: MutableMapping[_DMLColumnElement, Any] = { |
| 238 | name: Null() for name in statement._select_names |
| 239 | } |
| 240 | |
| 241 | if self._no_parameters: |
| 242 | self._no_parameters = False |
| 243 | self._dict_parameters = parameters |
| 244 | else: |
| 245 | # this condition normally not reachable as the Insert |
| 246 | # does not allow this construction to occur |
| 247 | assert False, "This statement already has parameters" |
| 248 | |
| 249 | def _no_multi_values_supported(self, statement: ValuesBase) -> NoReturn: |
| 250 | raise exc.InvalidRequestError( |