These (pre) connection attributes are supported and can be passed as
part of the dbConnect call in the named list attributes parameter:
azure_token: This should be a string scalar; in particular Azure Active
Directory authentication token. Only for use with Microsoft SQL Server and
with limited support away from the OEM Microsoft driver.
sf_private_key: This parameter is specific to establishing a connection
to snowflake and is understood by both OEM, as well as Posit
pro drivers. Argument should be a string (scalar); in particular a
PEM-encoded private key. Note,
if using private key authentication, the authenticator connection
string attribute must be set to SNOWFLAKE_JWT.
Using this connection attribute is an alternative to using the
PRIV_KEY_FILE connection string attribute.
sf_private_key_password: If key passed using sf_private_key is
encrypted, you can use this attribute to communicate the password.