Does any work to open a session for a new connection. Also sets up self.default_query_options and self.query_option_levels to include metadata about the options supported by the server.
(self)
| 250 | raise NotImplementedError() |
| 251 | |
| 252 | def _open_session(self): |
| 253 | """Does any work to open a session for a new connection. |
| 254 | Also sets up self.default_query_options and self.query_option_levels |
| 255 | to include metadata about the options supported by the server.""" |
| 256 | raise NotImplementedError() |
| 257 | |
| 258 | def is_connected(self): |
| 259 | """Returns True if the current Impala connection is alive and False otherwise.""" |