Return a "read only" form of this :class:`_sql.WriteableColumnCollection`.
(self)
| 2178 | return ReadOnlyColumnCollection(self) |
| 2179 | |
| 2180 | def as_readonly(self) -> ReadOnlyColumnCollection[_COLKEY, _COL_co]: |
| 2181 | """Return a "read only" form of this |
| 2182 | :class:`_sql.WriteableColumnCollection`.""" |
| 2183 | |
| 2184 | return self._as_readonly() |
| 2185 | |
| 2186 | def _init_proxy_index(self) -> None: |
| 2187 | """populate the "proxy index", if empty. |