Timeplus-connect

Bug Fixes
* Fixed an SQLAlchemy dialect issue with SQLAlchemy 1.4 that would cause problems in the most recent Superset version

Bug Fixes
* Fixed an issue where DBAPI cursors returned an invalid description object for columns. This would cause `'property' object has no attribute 'startswith'` errors for some SqlAlchemy and SuperSet queries.
* Fixed an issue where datetime parameters would not be correctly rendered as ClickHouse compatible strings

New Features
* The "parameters" object passed to client query methods can now be a sequence instead of a dictionary, for compatibility with query strings that contain simple format unnamed format directives, such as `'SELECT * FROM table WHERE value = %s'`

Bug Fixes
* The wait_end_of_query parameter/setting was incorrectly being stripped. This is fixed

Bug Fixes
* Fix encoding insert of multibyte characters

New Features
* Improve identifier handling/quoting for Clickhouse column, table, and database names
* Add client arrow_insert method to directly insert a PyArrow Table insert ClickHouse using Arrow format

Bug Fixes
* Fix issue when query_limit set to 0

Bug Fixes
* Fix SQL comment problems in DBAPI cursor