def __init__(self, _psql_host='localhost', _psql_dbname='data', _psql_user='', _psql_password='', _cache_path='cache'):
    super().__init__(_psql_host=_psql_host, _psql_dbname=_psql_dbname, _psql_user=_psql_user, _psql_password=_psql_password, _cache_path=_cache_path)
    self.table_key: str = '{}_rs_{}_depth'
    self.columns: typing.List[str] = []
    for i in range(10):
        self.columns.append('askprice{}'.format(i))
        self.columns.append('askamount{}'.format(i))
    for i in range(10):
        self.columns.append('bidprice{}'.format(i))
        self.columns.append('bidamount{}'.format(i))
    self.columns.append('datetime')
def __init__(self, _psql_host='localhost', _psql_dbname='data', _psql_user=, _psql_password=, _cache_path='cache'):
    super().__init__(_psql_host=_psql_host, _psql_dbname=_psql_dbname, _psql_user=_psql_user, _psql_password=_psql_password, _cache_path=_cache_path)
    self.table_key: str = '{}_rs_{}_depth'
    self.columns: typing.List[str] = []
    for i in range(10):
        self.columns.append('askprice{}'.format(i))
        self.columns.append('askamount{}'.format(i))
    for i in range(10):
        self.columns.append('bidprice{}'.format(i))
        self.columns.append('bidamount{}'.format(i))
    self.columns.append('datetime')