问题描述：在使用llama_index库的NLSQLTableQueryEngine时，即使在初始化数据库连接时将view_support设置为True,视图仍然无法正常工作。

解决方案：请确保在初始化数据库连接时将view_support设置为True,并检查是否正确导入了相关库和模块。如果问题仍然存在，请尝试更新llama_index库到最新版本。

1102 except exc.UnreflectableTableError as err:
1103 if key not in unreflectable:
File :2, in get_columns(self, connection, table_name, schema, **kw)
File ~\anaconda3\envs\dbgpt\lib\site-packages\sqlalchemy\engine\reflection.py:97, in cache(fn, self, con, *args, **kw)
 95 ret: _R = info_cache.get(key)
 96 if ret is None:
 ---> 97 ret = fn(self, con, *args, **kw)
 98 info_cache[key] = ret
 99 return ret
File ~\anaconda3\envs\dbgpt\lib\site-packages\sqlalchemy\dialects\mysql\base.py:2917, in MySQLDialect.get_columns(self, connection, table_name, schema, **kw)
 2915 @reflection.cache
 2916 def get_columns(self, connection, table_name, schema=None, **kw):
 -> 2917 parsed_state = self._parsed_state_or_create(
 2918 connection, table_name, schema, **kw
 2919 )
 2920 if parsed_state.columns:
 2921 return parsed_state.columns
File ~\anaconda3\envs\dbgpt\lib\site-packages\sqlalchemy\dialects\mysql\base.py:3177, in MySQLDialect._parsed_state_or_create(self, connection, table_name, schema, **kw)
 3174 def _parsed_state_or_create(
 3175 self, connection, table_name, schema=None, **kw
 3176 ):
 -> 3177 return self._setup_parser(
 3178 connection,
 3179 table_name,
 3180 schema,
 3181 info_cache=kw.get("info_cache", None),
 3182 )
File :2, in _setup_parser(self, connection, table_name, schema, **kw)
File ~\anaconda3\envs\dbgpt\lib\site-packages\sqlalchemy\engine\reflection.py:97, in cache(fn, self, con, *args, **kw)
 95 ret: _R = info_cache.get(key)
 96 if ret is None:
 ---> 97 ret = fn(self, con, *args, **kw)
 98 info_cache[key] = ret
 99 return ret
File ~\anaconda3\envs\dbgpt\lib\site-packages\sqlalchemy\dialects\mysql\base.py:3212, in MySQLDialect._setup_parser(self, connection, table_name, schema, **kw)
 3207 if parser._check_view(sql):
 3208 # Adapt views to something table-like.
 3209 columns = self._describe_table(
 3210 connection, None, charset, full_name=full_name
 3211 )
 -> 3212 sql = parser._describe_to_create(table_name, columns)
 3213 return parser.parse(sql, charset)
File ~\anaconda3、envs、dbgpt、lib、site-packages、sqlalchemy、dialects、mysql、reflection。py:350, in MySQLTableDefinitionParser._describe_to_create(self、table_name、columns)
 348 line.append("NOT NULL")
 349 if default:
 --> 350 if "auto_increment" in default:
 351 pass
 352 elif col_type.startswith("timestamp") and default.startswith(
 353 "C"
 354 ):
TypeError: a bytes-like object is required, not 'str'
it's giving an error