SUGESTION: MONEY and SMALLMONEY Data Types

I saw in other issue that MariaDB 10.3 will be extensible at the Data Type layer.

Therefore, this could constitute an excellent opportunity for implementing TRANSACT-SQL's MONEY and SMALLMONEY Data Types, and their associated functions, and therefore, be able to generate more value to the client that the one MySQL offers.

money and smallmoney (Transact-SQL)

A DECIMAL(19,4) would definitely do the work, but having the data type would allow to create specific functions for handling currency.

Thank you,
Juan