[davidpoarch]

>"You do realize the entire banking system is not built with the idea of ACID/transactional databases in mind?"

Well, I was referring to payments/transactions, not banking. As I specifically said, we are building a third party payments aggregator (TPPA). So, we handle transactions; we're not a bank.

In our case, there are many scenarios where ACID is needed. A couple of the most basic are the need to rollback a transaction (e.g. if it was cancelled, or if it did not succeed) and the need to recover from a failure (specifically, to get back to a consistent state to resume a failed transaction).